Find the missing length indicated

What are the solutions of the system? solve by graphing. y = -x^2 - 3x + 2 y = -2x + 2

Bob is putting books on a shelf and takes a break after filling 18 1/2 inches on the book shelf. the book shelf is now 2/3 full. how long is the entire bookshelf?

This graph shows which inequality? a ≤ –3 a > –3 a ≥ –3 a < –3