I dont even know where to begin to start please help!

Assame that Product Z is made of two units of A and three units of B. A is made of four units of C and four of D. D is made of two units of A Leod times for purchase or fabrication of each unit to final assembly are: Z takes two weeks: A,B,C, and D take one week each; and E takes three weeks. Saty four units of Product Z are required in Period 10. (Assume that there is currently no inventory on-hand of any of these items.) b. Develop an MrP planiting schedule showing gross and net requirements and order release and order receipt dates, (Leave the cells blank, whenever zero (0) is required.) Assame that Product Z is made of two units of A and three units of B. A is made of four units of C and four of D. D is made of two units of A Leod times for purchase or fabrication of each unit to final assembly are: Z takes two weeks: A,B,C, and D take one week each; and E takes three weeks. Saty four units of Product Z are required in Period 10. (Assume that there is currently no inventory on-hand of any of these items.) b. Develop an MrP planiting schedule showing gross and net requirements and order release and order receipt dates, (Leave the cells blank, whenever zero (0) is required.)