Mathematics, 18.10.2020 07:01, KingMack1136

40-gal tank $170 Aquarium light $30

Filtration system $65

Thermometer $2

18-lb bag of gravel $13

Large rocks $3 per lb

Clown fish $20 each

Damselfish $7 each

Kevin bought 4 bags of gravel to cover the bottom of his fish tank. He has 5 pounds of gravel left over.

How much gravel did Kevin use to cover the bottom of the tank?

Kevin used pounds of gravel.
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40-gal tank $170 Aquarium light $30

Filtration system $65

Thermometer $2