An office supply company is shipping a case of wooden pencils to a store. there are 64 boxes of pencils in the case. if each box of pencils weighs 2.5 ounces, what is the weight, in pounds, of the case of wooden pencils?

The correct answer for the question that is being presented above is this one: "10 pounds." An office supply company is shipping a case of wooden pencils to a store. There are 64 boxes of pencils in the case. If each box of pencils weighs 2.5 ounces, then...

There are: 
64 boxes of pencils
1 box weighs 2.5 ounces

Find its total weight in pounds.

1 ounce = 0.0625 pounds
64 boxes * 2.5 ounces = 160 ounces
160 ounces * 0.0625 pounds/1 oz = 10 pounds.
The 64 boxes of pencils weigh 10 pounds.

Iam guessing c. or d.