You use 1 gallon of gas for every 25 miles.

Then your car gets 25 miles to the gallon, Which is pretty good. I don't really see any question content here...You might want to try to re-post your question!  I will then try to answer better. Thanks.

Step-by-step explanation:

the answer is:

the correct option:

b.

to solve the problem, we need to remember how to operate to simplify exponential expressions using the logarithms.

we are given the equation:

then, using placing logarith with base 7 on both sides of the equation, we have:

so, rounding the obtained result to two decimal places (nearest hundreth), we have:

hence, we have that the correct option:

b.

have a nice day!