Here's a friendly intro to how challenges on Praxide work. In the Code tab above you'll spot a starter function that looks like this: public class Program { public static bool ReturnTrue() { } } All you need to do is type return true; between the curly braces { } and then hit the Check button. Once you've done that …

Build a function that accepts two numbers as arguments and gives back their sum. Examples Sum(3, 2) ➞ 5 Sum(-3, -6) ➞ -9 Sum(7, 3) ➞ 10 Notes Remember to return your result. Stuck on a challenge? Look for hints in the Resources tab. Still stuck? Reveal the answer in the Solutions tab.

Build a function that accepts an integer minutes and turns it into seconds. Examples convert(5) ➞ 300 convert(3) ➞ 180 convert(2) ➞ 120 Notes Remember to return your result. Stuck on a challenge? Look for hints in the Resources tab. Still stuck? Reveal the answer in the Solutions tab.

Write a function that receives a number as its input, bumps that number up by +1, and hands back the outcome. Examples Addition(0) ➞ 1 Addition(9) ➞ 10 Addition(-3) ➞ -2 Notes Remember to actually return your answer. Feeling stuck on a challenge? Grab a hint from the Resources tab. Still totally stuck? Unlock the walkthroughs in the So …

Build a function that receives a voltage and a current, then hands back the power it produces.

Build a function that receives an age in years and hands back that same age counted in days. Examples CalcAge(65) ➞ 23725 CalcAge(0) ➞ 0 CalcAge(20) ➞ 7300 Notes Treat every year as exactly 365 days for this challenge. Skip leap years and the days between the last birthday and today. Assume the input is always a positive integer.

Build a function that receives the base and height of a triangle and gives back its area. Examples triArea(3, 2) ➞ 3 triArea(7, 4) ➞ 14 triArea(10, 10) ➞ 50 Notes A triangle's area is: (base * height) / 2 Remember to actually return your answer. Feeling stuck on a challenge? Grab a hint from the Resources tab. Still really st …

C# gives you a single operator that hands you the remainder left over from a division. Two numbers arrive as parameters. Dividing the first parameter by the second leaves a remainder, which may well be zero. Send that value back. Examples Remainder(1, 3) ➞ 1 Remainder(3, 4) ➞ 3 Remainder(-9, 45) ➞ -9 Remainder …

Build a function that takes a single number as its only argument and hands back true when that number is less than or equal to zero, and false otherwise. Examples lessThanOrEqualToZero(5) ➞ false lessThanOrEqualToZero(0) ➞ true lessThanOrEqualToZero(-2) ➞ true Notes Remember to return your answer. Stuck on a challenge, find …

Write a function that takes two numbers and returns true when their combined total is below 100. Otherwise, return false. Examples lessThan100(22, 15) ➞ true // 22 + 15 = 37 lessThan100(83, 34) ➞ false // 83 + 34 = 117 lessThan100(3, 77) ➞ true Notes N/A

Build a function that accepts two integers and reports whether they hold the same value. Examples IsEqual(5, 6) ➞ false IsEqual(1, 1) ➞ true IsEqual(36, 35) ➞ false Notes N/A

Create a function that returns the string "something" combined with a single space " " and then the supplied argument a. Examples GiveMeSomething("is better than nothing") ➞ "something is better than nothing" GiveMeSomething("Bob Jane") ➞ "something Bob Jane" GiveMeSomething("something") ➞ "something something" Notes Assume that an input is always provided.

Write a function that flips a boolean value to its opposite. Examples Reverse(true) ➞ false Reverse(false) ➞ true Notes Remember to return the result. If a challenge has you stumped, look for hints in the Resources tab. When you're truly stuck, reveal the answer in the Solutions tab.

Create a function that turns a count of hours into the equivalent number of seconds. Examples howManySeconds(2) ➞ 7200 howManySeconds(10) ➞ 36000 howManySeconds(24) ➞ 86400 Notes There are 60 seconds in a minute and 60 minutes in an hour.

For a regular polygon n with n sides, return the combined total of its interior angles measured in degrees. Examples SumPolygon(3) ➞ 180 SumPolygon(4) ➞ 360 SumPolygon(6) ➞ 720 Notes n will always be greater than 2. The formula (n - 2) x 180 gives the sum of all the angle measures inside an n-sided polygon.

Write a function that gives back true whenever num1 matches num2, and returns false in every other situation. Examples IsSameNum(4, 8) ➞ false IsSameNum(2, 2) ➞ true IsSameNum(0, 6) ➞ false Notes Remember to actually return your answer.

A newcomer to C# was building a function and got a little stuck. Their code is supposed to join a given string name with the string "Praxide" and keep the result in a variable called result. Can you jump in and repair it? Examples nameString("Kiran") ➞ "KiranPraxide" nameString("Theo") ➞ "TheoPraxide" nameString("C#") ➞ "C#Praxide" Notes …

In C#, && is one of the logical operators. The && operator accepts two boolean values and gives back true only when both of them are true. Take a && b: first a is examined to see if it is true or false. If a is false, false is returned. Then b is examined to see if it is true or false. If b is false, false is returned. Otherwise, true is returned (as both a and b are …

Picture yourself keeping score during a basketball game. Given how many 3-pointers were scored and how many 2-pointers were scored, work out the team's total points and return that value (\[2 -pointers scored, 3-pointers scored]). Examples points(1, 1) ➞ 5 points(7, 5) ➞ 29 points(38, 8) ➞ 100 Notes N/A

Write a function that accepts a length and a width and works out the perimeter of a rectangle. Examples FindPerimeter(6, 7) ➞ 26 FindPerimeter(20, 10) ➞ 60 FindPerimeter(2, 9) ➞ 22 Notes Remember to return the result. If you get stuck, look for hints in the Resources tab. If you are really stuck, check the answers in the Solutions tab.