Answer:
A: Jenny will need to buy 3 boxes
B: The valentines will cost $5.37
C: There will be 6 valentines left over
Explanation:
Since two boxes can't cover all 36, she'll need to buy another box and keep the extras. Each box costs 1.79, 1.79 times 3 is 5.37. There would be 42 total valentines from all 3 boxes, since she only needs 36, she has 6 left over.
Hope this helps!