Evaluate.
{[(12 - 36) ÷ (-12)]^2 - 20} ÷ (-4)

A. 1
B. 2
C. 4

Simplify (a/b - b/a) times (a - a^2/a+b) a - a^2/a=b is a mixed number

Abby is preparing fruit punch for her party. she starts with a bowl filled with liquid that has 1/2 fruit juice and 1/2 sprite, but she decides it's too fruity. so she pours out 1/4 of the liquid, and then fills the bowl up again with sprite. what fraction of the punch is now sprite?

The length of a rectangular piece of land is 92 yards more than three times its width. the perimeter is 760 yards. find its dimensions.