Shelly hopped onto her bicycle and pedaled to the park at 14 miles per hour. then she whizzed back at 20 miles per hour. if the total trip took 3 2/5 hours how far was it to the park?

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!