Question

A company wants to construct an open rectangular box with a volume of 525 in3 so that the length of its base is 3 times its width. express the surface

Answer 1

The length of the base 3 times the width. And we need to express the surface. I'm assuming the surface of the base. So, to get the area of the base, multiply w * l.

Answer 2

 My advice would be try multiply w x l.