How to solve this equation 4(z + 5)=32

4*(z + 5) = 32

4z + 20 = 32

4z = 32 - 20

4z = 12

z = 12 : 4

z = 3

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.