For a recent year, mcdonald's company-owned restaurants had the following sales and expenses (in millions):
sales $19,000
food and packaging $8,140
payroll 4,800 occupancy (rent, depreciation, etc.) 2,690
general, selling, and administrative expenses 2,800
$18,430
income from operations $570
assume that the variable costs consist of food and packaging, payroll, and 40% of the general, selling, and administrative expenses.
a. what is mcdonald's contribution margin? round to the nearest tenth of a million (one decimal place).
b. what is mcdonald's contribution margin ratio? round to one decimal place.
c. how much would income from operations increase if same-store sales increased by $500 million for the coming year, with no change in the contribution margin ratio or fixed costs? round your answer to the nearest tenth of a million (one decimal place).

1. the corporate form of business organization has an advantage over both the sole proprietorship and the general partnership in ease of 2. the corporate form of business organization has an advantage over both the sole proprietorship and the general partnership in external liability for business 3. a partnership is an association of two or more persons to carry on as co-owners a business for 4. any one partner may be held liable for the entire indebtedness of the 5. a limited partner is liable for the partnership debt only to the extent of her capital 6. a person may be a partner even though he has no authority to conduct the ordinary activities of the 7. a partner may withdraw his capital contribution without the consent of all the 8. when a partner sells his interest in the partnership, the buyer becomes a new 9.every partner owes a duty of good faith, fairness, and loyalty to the other 10. a partner who fails to use ordinary care and skill in discharging assigned duties will be personally liable to the partners for any resulting loss.