The original price of a sweater is d dollars. You buy the sweater for (m - 3) dollars. You decorate the sweater and sell it for (5m - 7) dollars. Write an expression that represents your earnings from buying and selling the sweater.

Organic apples are on special for $1.50 per pound. does total cost vary inversely or directly with the number of pounds purchased? find the cost of 3.4 pounds of apples. a. inversely: $5.10 b. directly; $5.10 c. inversely: $2.27 d. directly; $2.27