Which of the following represent the addition property of equality? If a = b and c = d, then a + b = c + d. If a = b and c = d, then ac = bd. If a = b and c = d, then a + c = b + d. If a = b and c = d, then ac + b = bd + a.

4a. is 3 miles every hour

4b. is 1/3 of an hour per mile

step-by-step explanation:

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.

the answer is 1 becuz if it were 1.0 that would rip apart the entire so ya. : )

~potato.

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