Hello! I would be happy to help you with your math problem. For this problem, we plug in the values until we find what fits. In this case, we have to find what is true, or, in other words, equals 37.
The answer to your question would be B -- -3. Here is why.
-15*-3-8=37.
Hope this helps!
The answer is 35 because it in beetween 20 and 50
Answer:

Step-by-step explanation:
Given


Required
Determine the formula
An exponential function is of the form:

For point 




For point 

Substitute 7 for a

Divide both sides by 7

Take 4th root of both sides
![\sqrt[4]{81} =\sqrt[4]{b^4}](https://tex.z-dn.net/?f=%5Csqrt%5B4%5D%7B81%7D%20%3D%5Csqrt%5B4%5D%7Bb%5E4%7D)
![\sqrt[4]{81} =b](https://tex.z-dn.net/?f=%5Csqrt%5B4%5D%7B81%7D%20%3Db)
![b = \sqrt[4]{81}](https://tex.z-dn.net/?f=b%20%3D%20%5Csqrt%5B4%5D%7B81%7D)

Substitute 7 for a and 3 for b in 

