3. Suppose you own a store after your graduation and specialize in selling Persian carpets. You buy carpets for $220 per piece, on an average. Your rent, utilities, transportation, taxes, etc. add up to $15,000 per month. a. If you desire a 30% mark up on the cost, what would be your selling price? b. Suppose your selling price per unit is $350. What should be your monthly sales (in quantity and dollar amount) in order to break-even? Plot total cost and revenue on a graph paper and show the break-even point on both axes and write the quantity and dollar amount. c. If you as an owner also want to have a monthly salary of $5,000. What would be your break- even quantity and dollar amount? Hint: make your salary a part of fixed cost. d. If you as an owner want a monthly profit of $10,000 but no monthly salary. What would be your break-even quantity and dollar amount? Hint: make your salary a part of fixed cost.