A jeweler sells rings for $35 each plus a flat fee of $5 for
shipping for orders up to 10 rings. If customers
order more than 10 rings, the cost is $30 per
ring and shipping is free. Write a piecewise
function to represent the situation.

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.

lol.

it's ok we all do this sometimes.

-aparri