complete the following sentence. (there are no answer choices)

if the scale factor of two similar figures is a/b, then:

Either enter an exact answer in terms of \piπ or use 3.143.14 for \piπ and enter your answer as a decimal.

Arectangle has a perimeter of 24 inches. if the width is 5 more than twice the length, what are the dimensions of the rectangle?

(-y to the power of 2 - 4y- to the power of 2 -6 y +3)