Bernard Tires sells tires to car dealerships for an average of $30 each. The variable cost of each tire is $20, and monthly fixed manufacturing costs total $10,000. Monthly administrative fixed costs of the company total $8,000. How many tires must the company sell to break-even point? 1,000 tires 1, 800 tires 900 tires 333 tires Bernard Tires sells tires to car dealerships for an average of $30 each. The variable cost of each tire is $20, and monthly fixed manufacturing costs total $10,000. Other monthly fixed costs of the company total $8,000. Assuming sales total $60,000, what is the margin of safety? $6,000 $18,000 $50,000 $42,000