a certain shampoo is available in two sizes. A 10.1 ounce bottle costs $1.88. A 23.7 ounce bottle costs $4.98. Find the unit price for each size. Then state which size is the better buy based on the unit price. Round your answer to the nearest cent.
The shampoo bottle that is 10.1 ounces and cost $1.88 is the better buy because it cost $0.19 per ounce and the other shampoo bottle cost $0.21 per ounce.
