Answer:
7 Haircuts each day.
Explanation:
Let us first find out the amount a barber required to cover his expenses:
8 x 10 = $80
$80 is the total amount barber required to cover his expenses.
Now, if a barber makes $12 per haircut, Let us find out the total number of haircuts he has to do in order to meet his expenses. So;
80 / 12 = 6.67 = 7
So for a barber to cover his expenses, he has to do 7 haircuts each day.