May you please help me with this word problem

You paint a 1/2 of a wall in 1/4 hour. how long will it take you to paint one wall

The parabola y = x² - 4 opens: a.) up b.) down c.) right d.) left

Which points are solutions to the linear inequality y < 0.5x + 2? check all that apply. (–3, –2) (–2, 1) (–1, –2) (–1, 2) (1, –2) (1, 2)