Use the problem solving process to solve these problems. For this set of questions, research or make educated estimates for any unknown information needed to answer the question. Document your steps and thinking.
You want to paint the walls of a 6ft by 9ft storage room that has one door and one window. You want to put on two coats of paint. How many gallons and/or quarts of paint should you buy to paint the room as cheaply as possible?
Lee et al., Math in Society, §1.5 Problem Solving, Exercise 32