It cost $68 for 16 Square feet of flooring. How much does it cost for 12 squaring feet of flooring?

Jan accidently ran 7 minutes longer than he was supposed to. write an expression for the total amount of time jan ran if she was supposed to run m minutes

What is the measure of ac? enter your answer in the box. (4x - 5.5) (5x+25)

What does the pair of equations y = 1, z = 8 represent? in other words, describe the set of points (x, y, z) such that y = 1 and z = 8?