Mean is the
Of the set of data. First couple of seconds of video for answer.

A- Value
B- variable
C- number
D- average

D.Average

Step-by-step explanation: I took the test on K12 also know of them make sense  in the sentence.

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!