7 Maack Corporation's contribution margin ratio is 16% and its fixed monthly expenses are $44,000 the company's sales for a month are $299,000, what is the best estimate of the company's net operating income? Assume that the fixed monthly expenses do not change r A. $207,160 8,$3,840 sC.$255,000 D. $47,840 Bowe Corporation's fixed monthly expenses are $21,000 and its contribution margin ratio is 61%. Assuming that the fixed monthly expenses do not change, what is the best estimate of the company's net operating income in a month when sales are $74,000? 8. A. $7,860 B. $45,140 C$24,140 D. $53,000 9. Bolding Inc.'s contribution margin ratio is 61% and its fixed monthly expenses are $42,000. Assuming that the fixed monthly expenses do not change, what is the best estimate of the company's net operating income in a month when sales are $126,000? A. $76,860 B. $7.140 C) $34,860 D. $84,000