Answer each question and show steps please. Thank you!

Use these numbers for the fall season: Sales GM$ Beginning inventory $58,000 $10,500 $5,600 August September October $11,900 $66,000 $6,800 $62,000 $5,900 $11,000 $12,600 November $72,000 $7,200 December $14,800 $80,000 $7,700 January $9,500 $52,000 $4,300 $60,000 January end MU % for the season is 61.7%. Find: a. Total sales for the season. b. Average inventory for the season. c. Average inventory at cost for the season. d. Total GM $ for the season