Middle School

The total cost of a boat rental includes the price per hour plus the cost of one full tank of gas. The table below represents the boat rental fees.

| No. of Hours | 2 | 4 | 6 | 8 |
|--------------|----|----|----|----|
| Rental Fee | $79 | $125 | $171 | $217 |

What is the cost for a full tank of gas?

A. $23
B. $33
C. $46
D. $217