Answer the following question(s) using the information below. Burger Bob's Boathouse sells only one product. 7,000 units were sold In year resulting in $70,000 of sales revenue. Variable costs were $28,000 for the year, and fixed costs were $12,000. 4) Contribution margin per unit is A) $4.00 B) $4.29 C) $6.00 D) $10.00 E) $5.71 5) Break-even point in volume is A) 2,000 units. B) 3,000 units. C) 5,000 units. D) 7,000 units. E) 2,797 units. 6) The number of units required to be sold to achieve $60,000 of operating profit is. A) 10,000 units. B) 11,666 units. C) 15,000 units. D) 18,000 units. E) 12,000 units