3. Today, everything at Ms. Downing's store is on sale. The store offers a 20% discount. A. The regular price of a North Mountain Huskies T-
shirt is $18. What is the discounted price?
$3.60
B. If the regular price for an item is x dollars, what is
the discounted price?
(Hint: write an expression)
✓
C. The discount price of a Huskies hat is $18. What
was the original price?

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.

part a: 1.08

part b: 27.59