Can someone please help me? I don’t understand this

[see below]

Step-by-step explanation:

Substitute the given value into the function and then solve.

good luck on your studies! : )

david edward.

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!