Help please

If g(x) = x+1/ x-2 and h (x) =4 - x , what is the value of ( g*h) (-3)?

1-for what value of x is line a parallel to line b 2-for what value of x is line a parallel to line b

The chs baseball team was on the field and the batter popped the ball up. the equation b(t)=80t-16•16+3.5 represents the height of the ball above the ground in feet as a function of time in seconds. how long will the catcher have to get in position to catch the ball before it hits the ground? round to the nearest second