You are standing 90 feet away from a tree that is 90 feet tall and looking at the top of the tree.

On a piece of paper graph f(x)=5•(0.4)^x

What expression is equivalent to 42x-56y

Carley bought a jacket that was discounted 10% off the original price. the expression below represents the discounted price in dollars, based on x, the original price of the jacket.