Answer:
we conclude that:

Step-by-step explanation:
Given
The expression is
To determine
Simplify the expression
Simplifying the expression

Apply the exponent rule: 

Subtract the numbers: 

Therefore, we conclude that:

The answer is d. it isn’t an exact number
Best Answer
999/7 is just over 142
100/7 is just over 14
so there are (142 - 14) = 128 numbers that are multiples of 7, hence there are 999-99-128 = 772 numbers that are not multiples of 7.