Roberto is having his house painted. The job takes three days, and he pays the painter the same hourly rate every day. The cost of the job is in the chart below. Hours worked Amount paid Day 1 5 $300 Day 2 4 $240 Day 3 6 $360 What is the painter's unit rate of change of dollars with respect to time; that is, how much is the painter paid for one hour worked? Graph the proportional Relationship