Gary travel 16 mi in 2 hours at this rate how many miles will Gary have traveled in 1/2 hour

Noor brought 21 sheets of stickers. she gave 1/3 of a sheet to each of the 45 students at recess. she wants to give teachers 1 1/2 sheets each.

If f(x) = x+8 and g(x) = 4x- 3, find (f+g)(x)

Y=(x+3)(x-4)(x+1)^2 sulutions? multiplicity?