A manufacturer estimates that each unit of a particular commodity can be sold for $3 more than it costs to produce. There is also a fixed cost of $17000 associated with the production. (A) Express total profit P(x) as a function of the level of production x.
(B) How much profit (or loss) is there when x = 20,000 units are produced? When 5,000 units are produced?

The weight of a radioactive isotope was 96 grams at the start of an experiment. after one hour, the weight of the isotope was half of its initial weight. after two hours, the weight of the isotope was half of its weight the previous hour. if this pattern continues, which of the following graphs represents the weight of the radioactive isotope over time? a. graph w b. graph x c. graph y d. graph z