Richard has two different plans for his business. Plan 1: He charges $3 per hour to walk a dog plus $10 for grooming at the end of the walk. Plan 2: He charges $5 per hour to walk a dog and then offers free grooming at the end of the walk.

Part A Write an equation to model the time in hours, h, when the two plans cost the same amount.

Part B When will the two plans in hours, h, cost the same amount? h =