A bag of fertilizer covers 2000 square feet of lawn. What is the total number of bags of fertilizer that should be purchased to cover a rectangular lawn 360 feet by

Given that a bag of fertilizer covers an area of 2000 ft^2, the number of bags required to cover a lawn whose dimensions is 360 ft by 120 ft will be given by:

Number of bags = (area of lawn) / (area covered by 1 bag) * (number of bags)

thus

area of lawn:

A=length*width

A=360*120=43,200 ft²

Area covered by 1 bag=2000 ft²

Number of bags required for the lawn:

43200/2000

=21.6 bags

~22 bags