I need help with doing questions 1 to 3. I would appreciate a clear explanation, thanks!

Calculus 12 Antidifferentiation Review On a separate piece of paper, answer the following. 1. Use all three RAM with 5 intervals to determine the distance driven. A group takes a road trip from Kelowna to Radium Hot Springs, 451 km away according to their map. To pass the time, the passengers note the speed of the car every few minutes using the odometer, and find that the velocity of the car, in km/h at time t, in hours, can be approximated by the following continuous curve: 100 95 90 85 80 2. Suppose a cyclist is riding a straight road and the velocity of the bike at various times is recorded in the table below. Use RRAM and six intervals to determine the distance travelled over [0,2]. Time 0 0.4 0.8 1.2 1.6 2.0 (h) Velocity 20 18 15 19 18 14 (km/h) 3. Answer the following pictorially. a) _ -3xdx b ) So Ex + 3 ) dx c ) , ( 1 x ] + 2 ) dx d ) S(V25 - x2 + 1) dx