Answer:
It is a decreasing function for 0 < b < 1.
Step-by-step explanation:
Logarithm function:
The logarithm function is given by:

The base b determines if the function increases or decreases.
For 0 < b < 1, the function decreases.
For b > 1, the function increases.
In this question:
By the definition above, it is a decreasing function for 0 < b < 1.
If I understand correctly, you went wrong because you solved for Y instead of M, like the question dictates.
Answer:
Answer B is correct

Step-by-step explanation:

Step-by-step explanation:
18 units
have a great day
X=-0.61 and Y is 4 is I did my math right