7. The common ratio of a geometric series is ſ and the sum of the first 5 terms is 121.
a) What is the value of the first term?
b) Write the first 5 terms of the series.

Darcy deposited $390 into a savings account. as long as the account balance remains at or above $150, she does not have to pay a service fee for the account. for how many months can she withdraw $40 a month without having to pay service fees? a) 3 b) 5 c) 6 d) 9