3. Edgar has 7 gallons of gas remaining in his car.' After driving 30 miles, he had 4 gallons left in
the tank. How many gallons will be left in the
tank after driving a total of 50 miles?

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!

for future students the answer is b

hope i

-lavira: )