During 2016, skechers u. s.a., inc. had sales of $3,563.3 million, gross profit of $1,634.6 million and selling, general, and administrative expenses of $1,278.0 million what was skechers' cost of sales for 2016? a) $1,115.7 million b) $1,928.7 million c) $ 88.1 million d) $1,549.5 milliorn e) there is not enough information to calculate the amount.

Suppose life expectancy in years (l) is a function of two inputs, health expenditures (h) and nutrition expenditures (n) in hundreds of dollars per year. the production function is upper l equals ch superscript 0.40 baseline upper n superscript 0.60l=ch0.40n0.60. beginning with c = 1, a health input of $400400 per year (hequals=44) and a nutrition input of $400400 per year (nequals=44), show that the marginal product of health expenditures and the marginal product of nutrition expenditures are both decreasing. the marginal product of health expenditures when h goes from 44 to 55 is nothing, and the marginal product of health when h goes from 66 to 77 is nothing. (round your answers to three decimal places.)