Please help and explain your solution.

The partially completed inventory record for the rotor subassembly in the table below shows gross requirements, scheduled receipts, lead time, and current on-hand inventory. a. Complete the last three rows of the record for an FOQ of 140 units. (Enter your responses as integers. A response of "O" is equivalent to being not applicable.) Item: Rotor subassembly Lot Size: FOQ = 140 units Lead Time: 2 weeks Week 4 5 6 7 1 2 3 8 65 20 35 30 80 80 80 80 140 Gross requirements Scheduled receipts Projected on-hand inventory Planned receipts Planned order releases 20 100 100 85 75 15