Which three-dimensional figure has nine edges

Asap 25 pts + brainlest to right/best answer

Which function families have maximums and minimums? 1.)linear absolute value functions and exponential functions 2.) linear absolute value functions and quadratic functions 3.) linear absolute value functions and linear functions 4.) linear absolute value functions and constant functions

What number line represents the solution set for the inequality -1/2 greater than or equal to 4