I can’t get this one right

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

Determine domain and range, largest open interval, and intervals which function is continuous.

At a soccer tournament 1212 teams are wearing red shirts, 66 teams are wearing blue shirts, 44 teams are wearing orange shirts, and 22 teams are wearing white shirts. for every 22 teams at the tournament, there is 1 team wearing shirts. choose 1