### Home > CCA > Chapter 5 > Lesson 5.3.3 > Problem5-121

5-121.

Write equations to solve each of the following problems. Homework Help ✎

1. When the Gleo Retro (a trendy commuter car) is brand new, it costs $23,500$. Each year it loses $15\%$ of its value. What will the car be worth when it is $15$ years old?

$y = 23500 · \left(0.85\right)^{x}$

$2052.82$

2. Each year the population of Algeland increases by 12%. The population is currently 14,365,112. What will the population be 20 years from now?

$y = 14,365,112 · \left(1.12\right)^{x}$