Final answer:
The minimum number of hours that a car share needs to be used per year to make Company B a better deal is B. 6.
Step-by-step explanation:
To determine the minimum number of hours that a car share needs to be used per year to make Company B a better deal, we can set up an equation with the costs of each company. Let h represent the number of hours:
Company A's cost: $110 + $10h
Company B's cost: $125 + $7h
We need to find the point at which Company B's cost is less than Company A's cost. Solve the inequality:
$125 + $7h < $110 + $10h
$15 < $3h
Divide both sides by 3 to isolate h:
5 < h
The minimum number of hours that a car share needs to be used per year to make Company B a better deal is 6.