Please help me- thank you

(-2x^2 - 7x +3) - ( -5x^2 + 3x - 7) =

-2x^2 - 7x +3 + 5x^2 - 3x + 7 =

3x^2 - 10x + 10

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.

do you have a picture of the table