You are designing a marble planter for a city park. You want the length of the planter to be six times the height and the width to be three times the height. The sides should be one foot thick. Because the planter will be on the sidewalk, it does not need a bottom. a. Draw a picture of the planter with its dimensions. (2 marks) b. Write a function V(h) that expresses the volume of the dirt that can be held in the planter in terms of its height h. (1 marks) 0. What should the outer dimensions of the planter be if it is to hold 4 cubic feet of dirt? (4 marks}