-1⁄4 a − 4 = 4 what is a

add 4 so -1/2a=8

mult both sides by 2 so

-1a=16

divide 16 and -1

a = -16

Step-by-step explanation:

a=-32

Step-by-step explanation:

-1/4a-4=4

      +4+4

-1/4a=8

x-4  x-4

a=-32

answer: the common difference is -0.10

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.