3) A car's velocity (in km/hour) is given by t) = %, for 1 S t S 3 hours. a) What is the distance traveled by the car during this time? Show set up and calculations. Show all work clearly and be sure to use proper notation. Give an exact answer (so do not use a calculator to give a decimal approximation) and include units in your answer. (4- pts.) b) What is the car's average velocity over this time interval? Include units in your answer. (2 pts.)