What is the length of side q, given r = 20, s = 30, and q = 15°? round the answer to the nearest tenth. mc022-1.jpg [not drawn to scale] 11.9 40.7 140.9 1659.1

The smallest angle in the triangle must be opposite the shortest side. The only viable answer among the choices offered is the one that is less than 20. (In no event can side q be longer than 20+30=50.)

The appropriate choice is
  11.9

X= -5because this is a single step equation so you would just have to divide -16 both sides for x to equal your solution