52 students in class plant trees, every guy plants 3 trees and every girl plants 2 trees. We know the guys planted 36 more trees than the girls, how many guys are in this class?

Which ordered pair (c,d) is a solution to the given system of linear equations- c+2d=13 -9c-4d=-15

Amira is painting a rectangular banner 2 1/4 yards wide. the banner will have a blue background. amira has enough paint to cover 1 1/2 square yards of the wall. the school colors are blue and yellow, so amira wants to add yellow rectangles on the left and right sides of the blue rectangle. the yellow rectangles will each be 3/4 yards wide and the same height as the blue rectangle. what will be the total area of the two yellow rectangles?

Let f(x) = 5/x and g(x)=2x2+5x. what two numbers are not in the domain of f o g