Joe wanted to know more about how the cost of fertilizer for his lawn-care business was changing. the cost of a bag of fertilizer just increased from $8 to $15. what is the percentage increase of the price? represent the change as a fraction, percent, and decimal.

You are choosing between two health clubs. club a offers membership for a fee of $ 28 plus a monthly fee of $ 20. club b offers membership for a fee of $ 20 plus a monthly fee of $ 22. after how many months will the total cost of each health club be the same? what will be the total cost for each club? in __ months the total cost of each health club will be the same.