Which do you think pays more: 4.25% simple interest for 3 years or 4% interest compounded semi - annually for the same amount of time? Explain 100 POINTS

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