Let's first calculate the price per gallon if you fill a 15-gallon tank for $38.03.

To find the price per gallon, divide the total cost by the number of gallons:

$\text{Price per gallon} = \frac{38.03}{15} \approx 2.5353 \, \text{dollars per gallon}$

Rounding to the nearest cent, the price per gallon is $2.54.

Now, let's compare the two options:

• Filling the 15-gallon tank for $38.03 results in a price of $2.54 per gallon.
• Buying gas for $2.50 per gallon is obviously cheaper.

So, the better deal is to buy gas for $2.50 per gallon.

The correct choice is:

B. The better deal is to buy gas for $2.50/gallon because the price to fill a 15-gallon tank of gas for $38.03 is $2.54 per gallon.

Would you like more details or have any questions? Here are 5 related questions for further exploration:

1. How much money would you save by choosing the cheaper option over 15 gallons?
2. If gas prices fluctuate, how do you determine the break-even point between two prices?
3. What is the total cost if you buy gas for $2.50 per gallon and need to fill a 20-gallon tank?
4. How much would it cost to fill a 15-gallon tank if the price per gallon is $3.10?
5. If gas prices increase by 5%, how does that impact the total cost of a 15-gallon refill?

Tip: Always check the per-unit price when comparing deals—small differences can add up over time!