The sum of what number and -9 is -3 ?

Which point lies on a circle with a radius of 5 units and center at p(6, 1)?

Which number line correctly shows 0.8 + 0.3?

An observer(o) spots a plane(p) taking off from a local airport and flying at a 29 degree angle horizontal to her line of sight and located directly above a tower(t). the observer also notices a bird circling directly above her. if the distance from the plane(p) to the tower(t) is 6,000ft., how far is the bird(b) from the plane(p).