3.(a) Muddy Waters Industries has projected sales of its product for the next 6 months: 300 units 700 units 1,000 units 400 units 1,000 units 300 units an Febru March unc Each unit is sold at $10 per unit. The cost of goods sold is typically 40% of the month's budgeted sales revenue. Muddy Waters tries to maintain a Finished Goods ending inventory equal to the 60% of next month's cost of goods sold. January beginning inventories are expected to conform to company policy. Prepare a purchase budget for March, and April 3. (b) The selling and administrative expense budget of Ruffing Corporation is based on budgeted unit sales, which are 4,000 units for February. The variable selling and administrative expense is $8 per unit. The budgeted fixed selling and administrative expense is S78,000 per month, which includes depreciation of S10,000 per month. The remainder of the fixed selling and administrative expense represents current cash flows. The cash disbursements for selling and administrative expenses on administrative expense budget should be: the February selling and