Answer:
The correct answer is option D: 
Step-by-step explanation:
Given:
log(y)= 3.994
Solution:
A logarithm base b of a positive number x satisfies the following definition:

For 
Also if no base b is indicated, the base of the logarithm is assumed to be 10
.
Thus, in log(y)= 3.994 base b is not indicated. so its base is assumed to be 10
now

Then

Answer:
FG
Step-by-step explanation:
Answer:
5g
Step-by-step explanation:
Answer:
9?
Step-by-step explanation:
9 + 7 is `16, and 16 is a multiple of 4