In March, 2017, Crane Company purchased a coal mine for $8040000. Removable coal is estimated at 1500000 tons. Crane is required to restore the land at an estimated cost of $980000, and the land should have a value of $880000. The company incurred $1980000 of development costs preparing the mine for production. During 2017, 330000 tons were removed and 240000 tons were sold. The total amount of depletion that Crane should record for 2017 is a. $1462400. b. $2010800. c. $1619200. d. $2226400.

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.)