Given:
Consider the given equation is:

To find:
The missing exponent.
Solution:
Let x be the missing exponent. Then the given equation can be written as

It can be rewritten as:

![[\because a^ma^n=a^{m+n}]](https://tex.z-dn.net/?f=%5B%5Cbecause%20a%5Ema%5En%3Da%5E%7Bm%2Bn%7D%5D)
On comparing the coefficient of m, we get



Therefore, the value of the missing exponent is 8. So, the complete equation is
.
The next larger whole number is 638 .
The next smaller whole number is 637 .
637.892 is closer to 638 than it is to 637 .
The nearest whole number is 638 .
Answer:its A because i answer this two months ago
Step-by-step explanation:
57, 60, 69, 78, 89, 90, 95
(90-60=30)
Answer= C. 30