Answer: Cindy can withdraw $30 for 5 months without paying service fees.
Step-by-step explanation: Given that Cindy deposited $350 into a savings account. As long as the account balance remains at or above $200, she does not have to pay a service fee for the account.
We are to find the time for which she can withdraw $30 a month without paying service fees.
Let x represents the required number of months.
According to the given information, we have

Therefore, Cindy can withdraw $30 for 5 months without paying service fees.