Answer:
18 weeks
Step-by-step explanation:
Initial amount stored in savings account = $700
Final minimum amount required in the account = $150.
Thus,
The total amount of money he can spend = (700 - 150) = $550
Each week he is withdrawing $30 to go out to eat.
Since , maximum money he can spend should be multiple of 30 ,
Thus maximum he can spend $540
number of weeks he can do this = [tex]\frac{540}{30}[/tex]
= 18.
So, he can take out $30 each week to go out to eat for 18 weeks only.