The supervisor purchased 12 boxes of pencils. At the end of the week, there were only 7/1/2 boxes left. How many boxes had been used during the week? (Write answer and operation)

4 1/2

Step-by-step explanation:

To figure this out you need to just subtract the amount sold from the amount in the beginning and it will tell you the remainder of the pencils

12-7 1/2=4 1/2

4.0 ft

step-by-step explanation:

4.0 ft