1. **State the problem:** Calculate the simple interest earned and the future value of an investment of 7000 for 3 years at an annual simple interest rate of 16%.
2. **Formula for simple interest:**
$$I = P \times r \times t$$
where $I$ is the interest, $P$ is the principal amount, $r$ is the annual interest rate (in decimal), and $t$ is the time in years.
3. **Calculate the interest:**
Convert the interest rate to decimal: $r = 16\% = 0.16$.
$$I = 7000 \times 0.16 \times 3$$
$$I = 7000 \times 0.48$$
$$I = 3360$$
So, the interest earned is 3360.
4. **Calculate the future value:**
The future value $FV$ is the sum of the principal and the interest:
$$FV = P + I$$
$$FV = 7000 + 3360$$
$$FV = 10360$$
**Final answers:**
a) Interest earned = 3360
b) Future value = 10360
Simple Interest D09486
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