A Chemical Company Needs to Paint Fifty Chemical Tanks Including

A chemical company needs to paint fifty chemical tanks including the top and the bottom of the tanks. Each tank has a height of 10 ft and a diameter of 6 ft. Paint can be purchased in 1-gallon cans or in 5-gallon cans that cost the same as 4 1-gallon cans. Each gallon of paint will cover 350 square feet. How many of each should be purchased to keep the cost of painting the tanks as low as possible? Use 3.14 for .

A) 8 5-gallon cans and 1 1-gallon can
B) 7 5-gallon cans and 0 1-gallon cans
C) 8 5-gallon cans and 0 1-gallon cans
D) 7 5-gallon cans and 1 1-gallon can