Answer:
The value of w is:

Step-by-step explanation:
We have to calculate w from the equation

The solution has to be expressed as a logarithm in base 10.
We can solve it like:

The value of w is:

The greatest common factor is 4
Answer:
25
Step-by-step explanation:
Answer: -30
Step-by-step explanation: -13 subtract 17 = -30