Answer:
6 containers
6 ounces of fruit snack will be left over
Explanation:
1 pound = 16 ounces
⇒ ¹/₂ pound = 8 ounces
Total weight = weight of dried apples + weight of dried cranberries
 = 36 + 18
 = 54 ounces
Containers needed = total weight ÷ weight of snacks in one container
 = 54 ÷ 8
 = 6.75
Therefore, he will fill 6 containers
Snack left over = total weight - (number of containers × weight of snacks one container will hold)
 = 54 - (6 × 8)
 = 54 - 48
 = 6 ounces