6. When Chad stands on a chair, he is 11 feet tall. If the chair is 4 feet tall, write and solve an addition equation to find Chad's height.

It says factor each expression completely 8y+48

Witch represents the inverse of the function f(x)=1/4x-12

The rectangle shown has a perimeter of 108 cm and the given area. its length is 6 more than five times its width. write and solve a system of equations to find the dimensions of the rectangle.