Question

Use the table to solve.

Kevin's Supply List for
a Saltwater Aquarium

 40-gal tank $170  Aquarium light $30  Filtration system $65  Thermometer $2  10-lb bag of gravel $13  Large rocks $3 per lb  Clown fish $20 each  Damselfish  $7 each Kevin bought 6 bags of gravel to cover the bottom of his fish tank. He has 7 pounds of gravel left over. How much gravel did Kevin use to cover the bottom of the tank?

Answer 1

$10 x 6 = 60
60 - 7 = 53