Answer: $705
Step-by-step explanation:
In one month he sold $7,500 worth of merchandise so he will earn on 5% commission of top of his salary.
Find 5% of 7500 and add it to his salary.
5% * 7500 = 375
$330 + $375 = $705
the answer is 4 because 16 and 20 can both be divided by 4.