Need help. Show your work please.

Consuelo Chua, Inc., is a disk drive manufacturer in need of an aggregate plan for July through December. The company has gathered the following data. There are 8 hours of production per day. Costs $8/disk drive/Month $80/disk drive $12/hour $18/hour (above 8 hours) $40/worker $80/worker Holding cost Subcontracting Regular-time labor Overtime labor Hiring cost Layoff cost Other Data Current workforce (June) 8 people Labor-hours/disk drive 4 hours Workdays/month Beginning Inventory 150 disk drives* Ending Inventory O disk drives *Note that there is no holding cost for June. 20 days What will of the two following otrotonian coto What will each of the two following strategies cost? a) Vary the workforce so that production approximates demand. Chua had eight workers on board in June. (Enter all responses as whole numbers). Fill in the table below. (Enter all responses as whole numbers. In the hire/layoff column, use positive numbers for hires plus signs omitted: negative numbers for layoffs.) 1 Plan A Beginning Personnel on Inventory Staff 150 Demand Units Hire / Produced Layoff 8 400 500 Month 0 June 1 July 2 August 3 September 4 October 5 November 6 December 550 700 800 700 *No costs are incurred for unmet demand. **When computing "Personnel on Staff," if 0.5 or more of an employee needed round up and hire one more employee; if less than 0.5, round down No costs are incurred for unmet demand. **When computing "Personnel on Staff," if 0.5 or more of an employee is needed round up and hire one more employee; if less than 0.5, round down. The total inventory cost = $ (Enter your response as a whole number) The total hiring cost = $ (Enter your response as a whole number.) The total layoff cost = $(Enter your response as a whole number.) The total cost, excluding normal time labor costs, is = $ . (Enter your response as a whole number.) b) Vary overtime only and use a constant workforce of eight. Fill in the table below. (Enter all responses as whole numbers.) Plan B Fill in the table below. (Enter all responses as whole numbers.) Demand Production (Regular) Plan B Ending Overtime Inventory Production 150 320 400 500 Month 0 June 1 July 2 August 3 September 4 October 5 November 6 December 320 320 550 700 320 800 320 700 320 The total inventory carrying cost = $_:(Enter your response as a whole number.) The total overtime premium cost = $ - (Enter your response as a whole number.) The total cost, excluding normal time labor costs, is = $ - (Enter your response as a whole number)