You can put this solution on YOUR website!
First find the area of the rectangular lawn:
sq.yds. Next, convert this into sq.ft by multiplying by 9 sq.ft. per sq.yd.
sq.ft. Now divide this by 525 sq.ft to find the number of bags (B) of fertilizer required.
Round this the nearest integer since you can't buy fractional bags of fertilizer.
bags. Finally, multiply the number of bags (20) by the cost of each bag ($5.75) to get the total cost (C) of fertilizing the lawn.
The total cost that Sam will pay is $115.00 and he will have some fertilizer left when he's finished.