How long does it take $600 to double at a simple interest rate of 3%

Find the value of the variable and the length of each secant segment.

When a rectangle is dilated, how do the perimeter and area of the rectangle change?

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)