If 43 of the 148 reams of paper purchased by a department are used, what is the percentage that remains?

First, calculate how many reams remain
remaining = 148 - 43
remaining = 105
There are 105 reams of paper remains

Second, change 105 reams into percentage
p = 
p = 
p = 
p = 70.945945945...%
to the nearest tenth
p = 70.9%

The percentage of paper remains is approximately 70.9%