Answer:
9 months
Explanation:
Let x = number of months with withdrawal
Since he takes out 75 for each month, multiply x by 75 like this: 75x
This is being taken out of the 800, so subtract 800 by 75x
800 - 75x
This has to be equal to 125 since Mick does not want the account to be less than 125
800 - 75x = 125
Let's subtract 800 from both sides
800 - 75x = 125
- 800 - 800
-75x = -675
Then, divide both sides by -75 to isolate the x variable
-75x/-75 = -675/-75
x = 9
The max number of months is equal to 9