Will give brainliest! 12.mary morgan has a credit card that uses the unpaid-balance method to compute the finance charge. her monthly periodic rate is 1.8%. during the past billing cycle, her previous balance was $426 and she made purchases totaling $100. if she had $48 in returns and her new balance was $383, what amount did she make in payments? show work

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.