Find the price of the name brand detergent if Jeanne uses its coupon by substracting the amount of the coupon to the cost of the name brand detergent.
To find how much will she save if she buys the store brand detergent instead of the name brand, substract the cost of the store brand detergent to the cost calculated above.
She will save $1.51 if she buys the store brand detergent.