Answer:
10 pounds
Explanation:
First, we need to determine the total weight of the pencils in ounces:
64 boxes x 2.5 ounces per box = 160 ounces
To convert this weight to pounds, we need to divide by the number of ounces in a pound:
160 ounces / 16 ounces per pound = 10 pounds
Therefore, the case of wooden pencils weighs 10 pounds.