Final answer:
To find the interest earned over a 10-year period with weekly compounding, you can use the formula for compound interest and subtract the initial investment. However, the exact values are needed to calculate the interest earned.
Step-by-step explanation:
To find the interest earned over a 10-year period with weekly compounding, you can use the formula for compound interest: A = P(1 + r/n)^(nt) - P. Here, A represents the final amount, P represents the initial investment, r represents the interest rate (expressed as a decimal), n represents the number of times interest is compounded per year, and t represents the number of years. In this case, you are looking for the interest earned, which can be found by subtracting the initial investment from the final amount: I = A - P.
In the given question, we don't have the values for the interest rate or the initial investment, so we can't calculate the exact interest earned. However, using the given information, you need to determine the interest rate, ensure the compounding period is weekly, and substitute the values into the formula to find the interest earned.