Question 4 1.66 pts Sales amount to $774,000, variable costs are 59% of sales, and fixed cost is $120,000. What is the contribution margin ratio? 0 37% 39% 44% 041% Question 5 1.66 pts Compute break-even sales in units) when fixed costs are $420,000, unit selling price is $66, and unit variable cost is $42. 11,500 units 20,300 units 17,500 units 10,500 units Question 6 1.66 pts Calculate the number of units that must be sold in order to realize an operating income of $139,000 when fixed costs are $440,000 and unit contribution margin is $20. 29,650 units 28,950 units 31,550 units 30,350 units