How is evaluating an expression with fractions like evaluating an expression with whole numbers? How is it different?

its 4 because 2 times 2 is 4, if you double the number two you get four

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.

just get this app called photo math it should be able to do those