Which country leads the world in recoverable coal reserves, with enough to last more than 200 years?

In a chapter 7 bankruptcy, a debtor:

The fiscal 2016 financial statements of nike inc. shows average net operating assets (noa) of $8,450 million, average net nonoperating obligations (nno) of $(4,033) million, average total liabilities of $9,014 million, and average equity of $12,483 million. the company's 2016 financial leverage (flev) is: select one: a. (0.477) b. (0.559 c. (0.323) d. (0.447) e. there is not enough information to determine the ratio.

Problem page a medical equipment industry manufactures x-ray machines. the unit cost c (the cost in dollars to make each x-ray machine) depends on the number of machines made. if x machines are made, then the unit cost is given by the function =cx+−0.3x2126x31,935 . how many machines must be made to minimize the unit cost?