Answer: B. $1.49
Explanation:
1.) Find how much one pound of cherry tomatoes would cost. To do so, do
4.50 (the cost for 3 lbs for cherry tomatoes) /3 (the number of pounds), which would be $1.50 per pound of cherry tomatoes.
2.) Find how much one pound of heirloom tomatoes would cost. To do so, do 5.98 (the cost for 2 pounds for heirloom tomatoes) /2 (the number of pounds), which would be $2.99 per pound of heirloom tomatoes.
3.) Subtract. To find the "difference" in the unit costs of the tomatoes, do 2.99-1.50=1.49.
Therefore, the difference in the unit costs of the tomatoes is B. $1.49.