Please show every step of calculation for my understanding! Thank you in advance :)

4. A 20 kg metal box is sitting on flat wooden ground at rest. Two people then pull on the box with the forces as shown. [ F1 | = 150 N, [F2 | = 80 N. gate F 2 F1 20 40 0 , = 40 - - - - metal 0 2 = 20 ' wood a. In what direction does the friction force act on the metal box? b. Does the box slide? If so, in which direction? In c. What is the magnitude of the friction force on the metal box