Find the value of a. Round your answer to the nearest tenth.

Find the sum of the measure of the interior angles of a polygon of 9 sides ; of 32 sides

Asquare picture with sides of 32 inches is to be mounted on a square mat with sides of 52 inches. find the area of the mat that will remain uncovered by the picture.

Suppose a store sells an average of 80 cases of soda per day. assume that each case contains 24 cans of soda and that the store is open 10 hours per day. find the average number of soda that the store sells per hour.