Help help help help plz

If f(x) =3x-2 and g(x) =2x+1 fins (f+ g) (x)

Whit h equation best represents this situation the number 98 increased by an unknown number equal to 120

The price for gasoline is represented by the equation y=3.69x, where y represents the total price for x gallons of gasoline. on a graph, the number of gallons is represented on the horizontal axis, and the total price is represented on the vertical axis. determine whether each statement describes the graph of the equation. select true or false for each statement