Given:
The number of 100.
To find:
The given number as an exponential expression with 10 as the base.
Solution:
We have,
Given number = 100
It can be written as

![[\because a^m\cdot a^n=a^{m+n}]](https://tex.z-dn.net/?f=%5B%5Cbecause%20a%5Em%5Ccdot%20a%5En%3Da%5E%7Bm%2Bn%7D%5D)

Here, base is 10 and exponent is 2.
Therefore, the given number can be written as
.
55 -10 = 452x2 = 47x7 = 494x4 = 1621 + 1 = 2277- 10 = 67x+30=100 = 70 You gave the answers. ???
D Would be the correct answer.