Answer:
$14722.14
Explanation:
We are given that
In 2015
The value of jewel=$17500
Rate of appreciation, r=2.5%
We have to find the initial value of the jewel when it was first bought.
Time, n=7 years
Final value=
![Initial\;value (r/100+1)^n](https://img.qammunity.org/2022/formulas/mathematics/high-school/dxcn82a0i5qm3b4m32p4baeer5ukdtifqy.png)
Using the formula
![17500=Initial\;value(2.5/100+1)^7](https://img.qammunity.org/2022/formulas/mathematics/high-school/yrwv6cn3f3q05k1mjsqcf66uw2y7zdtg7m.png)
![17500=Initial\;value(1.025)^7](https://img.qammunity.org/2022/formulas/mathematics/high-school/o31cemboi9rae3l4py3hulvrcw9b1xtnty.png)
![Initial\;value=(17500)/((1.025)^7)](https://img.qammunity.org/2022/formulas/mathematics/high-school/l1zp0p16o382ljzztof88ue6dvepxx4emk.png)
Initial value=$14722.14
Hence, the the initial value of the jewel when it was first bought=$14722.14