Product is a 12-ounce bottle of generic mouthwash that sells for dollar 39 product b is a 24 ounce bottle of mouthwash that cost $2.79 which one is the better buy

d

step-by-step explanation:

d

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.