Answer:
$842.13.
Explanation:
We have been given that $240 is invested at an interest rate of 9% per year and is compounded monthly. We are asked to find the value of investment after 14 years.
We will use compound interest formula to solve our given problem.
, where,
A = Final amount after T years,
P = Principal amount,
r = Annual interest rate in decimal form,
n = Number of times interest is compounded per year,
T = Time in years.
![r=9\%=(9)/(100)=0.09](https://img.qammunity.org/2019/formulas/mathematics/middle-school/kut93fvmnefrnmztturpnsfzb5rp3f95o8.png)
![A=\$240(1+(0.09)/(12))^(12*14)](https://img.qammunity.org/2019/formulas/mathematics/middle-school/mf1kyeptpftkb3vokjfj3mev7jivxfvtzz.png)
![A=\$240(1+0.0075)^(168)](https://img.qammunity.org/2019/formulas/mathematics/middle-school/6figf5cf1edhe0m51b7ir2pqrholtwfkim.png)
![A=\$240(1.0075)^(168)](https://img.qammunity.org/2019/formulas/mathematics/middle-school/4wrzz5eyd1j3ksnedtj0z22dieknas5ize.png)
![A=\$240*3.508885595](https://img.qammunity.org/2019/formulas/mathematics/middle-school/jhm8t6josgwrsrv0tmtj9udmk9py96s0j9.png)
![A=\$842.1325428](https://img.qammunity.org/2019/formulas/mathematics/middle-school/hop85l3vv412b7hodqwg08ppha9bqcd93w.png)
![A\approx \$842.13](https://img.qammunity.org/2019/formulas/mathematics/middle-school/6geymlfmylyfdeyb6x9265bumgi2jz4jyi.png)
Therefore, the investment will be worth $842.13 in 14 years.