14 1/5 - 5 5/6 as a fraction

If f(x)=2x+2and g(x)=x^3, what is (g•f)(2)

Which expression is not a polynomial?

Tomas used 3 1/3 cups of flour and now has 1 2/3cups left. which equation can he use to find f, the number of cups of flour he had to begin with? f+3 1/3=1 2/3 f-3 1/3=1 2/3 3 1/3f=1 2/3 f/3 1/3=1 2/3