The value of a dirt bike decreases by 20% each year. If you purchased this dirt bike today for $500, to the nearest dollar how much would the bike be worth five years later?
After the first year: 500*0.8 After the second year: 500*0.8^2 After the third year 500*0.8^3 After the fourth year 500*0.8^4 After the fifth year: 500*0.8^5 = 163.84