Final answer:
Clint paid $3.06 per gallon for his gas. The station across the street charged $2.99 per gallon, which means he could have saved $0.07 per gallon. However, this does not match the provided options, implying there may be a discrepancy in the figures given in the question.
Step-by-step explanation:
The question requires us to calculate how much money Clint could have saved per gallon if he had purchased gas from the station across the street. To find this, we first need to determine how much Clint paid per gallon at the first station. Clint filled his 18-gallon tank for $55.08. Dividing the total cost by the number of gallons gives us the price per gallon Clint paid:
$55.08 ÷ 18 gallons = $3.06 per gallon.
Since the station across the street sold fuel for $2.99 per gallon, we subtract this price from what Clint paid:
$3.06 per gallon - $2.99 per gallon = $0.07 per gallon.
However, the options provided in the question do not include $0.07 as an answer. Moreover, there may have been a miscalculation because none of the suggested answers match our result. Therefore, Clint should recheck his calculations or the actual costs to determine the correct savings per gallon.