8. true false.
the command system is the best economic system for entrepreneurs.
9. true
false people play the central role in an economy.
10. true false
consumers buy more of a product when its price is low.
11. true false
the supply and demand curve is a tool used by entrepreneurs,
12. true false suppliers often charge higher prices when demand is low.
13. true false.
the profit motive encourages entrepreneurs to start businesses.
14. true false
earning a profit is the only reason that people start businesses.
15. true false
non-profit organizations are not allowed to make a profit.

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.)