Naomi and Claire are painting a mural. Naomi paints 2 square feet per hour and has already painted 16.5 square feet.Claire paints 4 square feet per hour and has already painted 7.5 square feet.How many more hours will it take for Naomi and Claire to paint an equal total number of square feet? Enter your answer in the box.

Answer:4.5 hoursStep-by-step explanation:let t be the time elapsed Therefore, we can set up a system of equations and solve accordingly 2t + 16.5 = 4t + 7.52t = 9t = 4.5 hours more till they paint the same amount in square feet