5miles to 35 miles in a fraction ?

F(x)=x/2-2 and g(x)=2x^2+x-3 find (f+g)(x)

Don't know how to find x given these segment lengths

Abag of jelly beans contain 13 pink, green, 20 yellow, 10 black, 7 red, and 11 orange jelly beans. approximately what percent of the jelly beans are pink and yellow?