With that picture it asks: who got it right, is each simplified expression equivalent to the original expression and explain how you know. it also asks how would you explain the correct procedure to the student who made the error

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