4x1/100 + 5x1/1000, does this equal four hundred three thousands

Find the value of the cosine for angle a

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)

Precalculus question, image attached.