Dimerization, what steps do I follow to answer these questions? Thanks in advance

A study of the rate of dimerization of C4H6 gave the data shown in the table: 2C4H6 ⟶C8H12 time: 0 1600 3200 4800 6200 (C4H6) (M): 1.00x10^-2 5.04x10^-3 3.37x10^-3 2.53x10^-3 2.08x10^-3

(a) Determine the average rate of dimerization between 0 s and 1600 s, and between 1600 s and 3200 s.

(b) Estimate the instantaneous rate of dimerization at 3200 s from a graph of time versus [C4H6]. What are the units of this rate?

(c) Determine the average rate of formation of C8H12 at 1600 s and the instantaneous rate of formation at 3200 s from the rates found in parts (a) and (b).