In the year 2000, the world population was about 6 billion, and it was growing by about 1.2% each year. This pattern can help determine future populations. Which explicit expression can be used to model this situation?

What will the graph look like for a system of equations that has no solution? a. the lines will be perpendicular. b. the lines will cross at one point. c. both equations will form the same line. d. the lines will be parallel.

Evaluate the discriminant of each equation. tell how many solutions each equation has and whether the solutions are real or imaginary. x^2 - 4x - 5 = 0

What is the inverse of f(x) = 6x -24