Answer:

Step-by-step explanation:
The given equation is in exponential form:

To find
we need to write it in logarithmic form:
⇒ 
⇒ 



To prove this, we can substitute the value into the given equation



Therefore, the answer is 
okey
you needed the sum or division?
Answer:
4b^-1
Step-by-step explanation:
16a/4 = 4a
4a/a = 4
4/b = 4b^-1
The answer is 12.21 you find this by dividing 149 by ten and then 11 then 12 next 13 then realize you went too far and its some where around 12. somthing. I know that was confusing but thats the only way i can explain it or just put this into a calculator:
Answer:
here
Step-by-step explanation: