Consider the question. It takes Dawn 2 hours to paint 1 watercolor painting. She was recently commissioned to paint a series of 12 paintings. Dawn will earn $3,600.00 for these 12 paintings. How much money does Dawn make per hour?
 If the answer is '150'; explain the reasoning:
It takes her 2 hours to paint 1 picture and she needs to paint 12 pictures so it will take 2 * 12 = 24 hours. Dawn will make $3,6000.00 for 24 hours of work which means she makes 3600 / 24 = $150.00 per hour of work.