As per the problem,
Rhonda bought a new laptop for $800.
The laptop depreciates, or loses, 20% of its value each year.
The value of the laptop at a later time can be found using the formula
![A=P(1-r)^t.....(1)](https://img.qammunity.org/2019/formulas/mathematics/college/omnjdieszb5efuvaw8zh8y9a6h7wuv8zak.png)
Here we have
P=$800
r=20%=0.20
t=2 years
Substitute the values in equation (1) we get
![image](https://img.qammunity.org/2019/formulas/mathematics/college/eqo26y53zwus21ylckj7kcdi8jru53dcz6.png)
The laptop be worth in two years will be $512.