Given the data below for the reaction, 2 A + 2 B + 4 C D + E + 3 F

Experiment	Initial conc of A, mol/L	Initial conc of B, mol/L	Initial conc of C, mol/L	Initial rate, mol/L.s
1	0.1	0.1	0.2	2 x 10-3
2	0.2	0.3	0.2	6 x 10-3
3	0.3	0.1	0.2	2 x 10-3
4	0.4	0.3	0.4	1.2 x 10-2

Calculate the value of k

So may someone please explain the concept and steps behind this? (not just based on this one specifically but on how to go about a problem like this) thank you