Suppose that a car has a value of $30,000 when it is purchased, and decreases in value by 20% per year. After how many years will the car be worth less than $5,000? Round to the nearest year.

Amanda went into the grocery business starting with five stores. after one year, she opened two more stores. after two years, she opened two more stores than the previous year. if amanda expands her grocery business following the same pattern, which of the following graphs represents the number of stores she will own over time?

Rewrite the following quadratic functions in intercept or factored form. show your work. f(x) = 3x^2 - 12

Tom drove 206 miles in 3.9 hours. estimate his average speed.