The length of a rectangle is 6 more than twice its width. The perimeter of the rectangle is 108, what are the dimensions of the rectangle

If the scale factor between two circles is 2x/5y what is the ratio of their areas?

Estimate the area under the curve f(x) = 16 - x^2 from x = 0 to x = 3 by using three inscribed (under the curve) rectangles. answer to the nearest integer.

Money off coupons have been circulated to 300 households. only 2/5 of these were redeemed (used) in the local supermarket to get a free shampoo. what fraction of coupons were unused? (ps: write how you got the answer)