The interest on an investment varies directly as the rate of interest. If the interest is $43 when the interest rate is 5%, find the interest when the rate is 7.8%.

Is the product of seventeen negative numbers, positive or negative ?

55 bridesmaids want to make 325 325 decorations for a wedding. each decoration takes about 212 2 1 2 minutes to make. which response gives the best estimate for the amount of time each bridesmaid will spend making decorations?

Find the measure of the interior angles of the following regular polygons: a triangle, a quadrilateral, a pentagon, an octagon, a decagon, a 30-gon, a 50-gon, and a 100-gon.