Answer and Explanation:
As in the given situation, Jamie lee have a benefit from the transfer in the case when the interest on the store credit card would be higher than the $50 for the first 90 days
1. If we assume that the date of the payment is one month but she does not have the money to make the payment so she can transfer the balance to the credit card so that she get 2 more months to make the payment
2. This could become the disadvantage when the payment is not done within the 90 days as she have to pay the interest of 18.5% on the tital amount also the transaction fee would also be paid