Belinda owns a restaurant that sells lunch for $15. The food cost of sales used in producing each set lunch is $5. Additional variable costs are $5 per lunch. What is the contribution margin expressed in dollars and percent for selling 170 lunches? Question 6 options: The answer is not listed $5 and 33.3% $850 and 30.3% $850 and 33.3% $850 and 3.3%