The dimensions of the base of a swimming pool are and , its height is 3m and its volume is 300m3. Granite was installed on both base and walls. The cost of one meter of granite is 4 dollars. Find the dimensions of the base such that cost is minimized.

Liz is shipping a package to her friend. the maximum weight of a medium flat-rate box is 20 pounds, including the box which weighs 6 ounces. write and solve an inequality to describe the possible weight in pounds, w, of the contents that liz will ship to her friend if she must use a medium flat-rate box. use the drop-down menus to explain your answer.