Final answer:
Jaycee's $300 deposit at City Bank with an annual interest rate of 5% earns $3.75 in simple interest after three months.
Step-by-step explanation:
In this case, Jaycee deposits $300 in a savings account at City Bank with an annual interest rate of 5%. Since she makes no other deposits or withdrawals, the interest earned will be calculated using the simple interest formula: Simple Interest = Principal x Rate x Time.
Given that the principal is $300, the rate is 5% (or 0.05 as a decimal), and the time is three months (or 1/4 of a year), we can substitute these values into the formula to find the simple interest:
Simple Interest = $300 x 0.05 x 1/4 = $3.75
Therefore, her money earns $3.75 in simple interest after three months.