Please label a,b,c

The Computer Supply manufactures memory cards that sell to wholesalers for $2.00 each. Variable and xed costs are as follows: Variable Costs per card: Fixed Costs per Month: Manufacturing Factory overhead $7,000 Direct materials $0.30 Selling and admin. 3,000 Direct labor 0.25 Factory overhead 0.25 $0.80 Selling and admin. 0.15 _ Total $0.95 Total $10,000 Computer Supply produced and sold 10.000 cards during October 2021 . There were no beginning or ending inventories. Required: a. Determine Computer Supply's monthly break-even point in units. b. Determine the effect on monthly profit of a 1,000 unit increase in monthly sales. c. If Computer Supply is subject to an income tax of 40 percent, determine the dollar sales volume required to earn a monthly after-tax prot of $1 5,000