Please answer...i always answer... please

A) -x + y = 2

B) x + 2y = 4

we add both equations

3 y = 6

y = 2

We put y = 2 into equation B)

x + 2 * 2 = 4

x = 0

A) -2x + y = 6

B) x + y = 0

We multiply B) by 2

B) 2 x + 2 y = 0 then we add A)

A) -2x + y = 6

3y = 6

y = 2

Therefore x = -2

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.

c

step-by-step explanation: