(6r - 2) + (3r + 1) steps pls

(

6 − 2 ) + ( 3 + 1 ) 6 − 2 + 3 +1

Step-by-step explanation:

Add the numbers

Combine like terms

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.

i think the answer is b