Someone please help

Prove that the diagonals of a parallelogram bisect each other.
Name the coordinates for point C.

A : (2a + 2b, 2c)

B: (2a, 2c)

C: (2a, 2b + 2c)

D: (2a, 2b)

idk

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.