Please help, prepping for AP exam.

V(1) Train B 40 Velocity (Kph) 30- Train A 20 10- 10 12 14 16 18 Time (Hours) Three trains, A, B, and C each travel on a straight track for 0St $ 16 hours. The graphs above, which consist of line segments, show the velocities, in kilometers per hour, of trains A and B. The velocity of C is given by the function v(t) =8t-0.25t" . Be sure to indicate units of measure for all answers. a) Find the velocities of A and C at time t = 6 hours. b) Find the accelerations of B and C at time t = 6 hours. c) Find the positive difference between the total distance that A traveled and the total distance that B traveled in 16 hours. d) Find the total distance that C traveled in 16 hours