Mike's withdrawals will be treated as negative numbers.
Since Mike withdrew $60 three times, use the following equation to find the change in his balance:

The change in Mike's account balance will be
-$180.
I can't see the whole problem
There are a lot of other step that will be in between but the answer will end up being.....
Answer: Log (a^2c/ b^3 d^4)
The answers would be 11, if you plug it in it would be 5(11)-7=48
Corresponding sides have the same ratio, so
x/15 = 12/(12+8) = 3/5
x = 15*3/5
x = 9