Andrew builds a pyramid shaped sand castle with a basic area of 144 in.² and a height of 10 inches. His friend, Aaron, builds a larger pyramid shape castle with a length, width and height that are related by a scale factor of two. Which statement is correct?

step-by-step explanation:

step 1: solve one of the equations for one of the variables. let's solve the first equation for y:

step 2: substitute that equation into the other equation, and solve for x.

step 3: substitute x = 4 x = 4 x=4 into one of the original equations, and solve for y.

the answer is $42.96

step-by-step explanation: