A company's unit cost for producing qqq units is a minimum when q=80q=80q, equals, 80 units are produced. The unit cost increases \$7$7dollar sign, 7 for every 101010 units more or less than 808080 produced. If the minimum unit cost is \$5$5dollar sign, 5, which of the following equations can be used to find the number of units, qqq, for which the unit cost is \$8.25$8.25dollar sign, 8, point, 25? Choose 1 answer

answer is 144

step-by-step explanation:

whole numbers.

step-by-step explanation:

we are given the average monthly rainfall (in millimeters) model r(m) for the years 1900-2009 as a function of the month number m.

as we can see m is taken for the number of months for years 1900-2009.

we know that number of months can't be a negative number or decimal number or a fraction.

so, the number of months could be only positive whole numbers.

therefore, whole numbers is more appropriate for the domain of r.