Explanation :
What you would do is you take the area of the rectangle and subtract the area of the triangle
The area of a rectangle is Length * Width
The answer would be x + y = 37 y = x + 5 x + (x + 5) = 37 2x = 32 x = 16 y = 21Hope I helped!
Option A will be the correct answer
The answer is C. You would use MEAN because it gives you the average although it doesn't always have to be a whole number. Therefore despite that one student performing badly won't affect the rest of the class.
Again hope this helps : )