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

5-121.

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

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 · (0.85)^{x}$2052.82

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 · (1.12)

^{x}