Number 3 and 4 could you write formula show all work ?

3) The figure below shows the v versus f graphs for cars A and B. At f = 0 both are at x = 0. Estimate: (a) where and when they meet again; and (b) their velocities when they meet. U (m/s) B 12 8 A 4 1 (5) 2 3 4 5 4) The position of a particle is given by x = 4.50 e-0.30t, where x has units of meters. What is (a) the average velocity between 2.00 and 3.00 s; (b) the instantaneous velocity at 2.00 s; (c) the instantaneous acceleration at 2.00 s