Can someone just answer number 12 for me

If f(x) = 3-2x and g(x) =1/x+5 to what is the value (f/g)(8)

The height of a flare fired from the deck of a ship in distress can be modeled by h(t)= -2(8t^2-52t-28), where h is the height of the flare above water and t is the time in seconds. a. find the time it takes the flare to hit the water.

What is the image of c for a 90° counterclockwise rotation about a? (3, 7) (-1, 3) (7, 3)