Answer:
1. All of the following are equivalent to 10^5 × 10^11 except C.
2. All of the following expressions are equivalent to 10^18/10^6 except C.
3. All of the following expressions are equivalent to (10^4)^6 except A.
Explanation:
The explanation would be way too long so imma just say trust me on this.
Hope you do good! :D