a 2000 investment doubles in value every 5 years. the function f(x)=2000•2^x/5 represents the value of the investment after x years. How much will the investment be worth after 18 years?

Lesson 9-3 for items 8-10, a square is drawn in the coordinate plane, with vertices as shown in the diagram. then the square is reflected across the x-axis. -2 4 8. the function that describes the reflection is (x, y) - a. (x, y-3). b. (x, y-6). c. (-x, y). d. (x,- y).