Answer:
9 more computers.
Step-by-step explanation:
Computer sold last month = 72
Her goal is to sell 12% more computers this month than she sold last month.
We need to find how many computers does she need to sell to reach her goal.
12% of 72 = [tex]\dfrac{12}{100}\times 72=8.64[/tex]
or
9
So, she needs to add sell 9 computers to reach the goal.