The function notation F(x) can be written as a variable in an equation. Is that variable x or y?

F(x) is the exact same thing as just putting y. Thus, the variable is y.

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step-by-step explanation:

should you really be posting this isn't math boi.

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!