One third of a number increased by 12 one thirdn + 12 n plus 12 over 3 one third(n + 12) n + one third(12)

A.

Step-by-step explanation:

Let the number be n

First find the one third of the number.

One third of n

Now we have to increase this number by 12, that is we will add 12 to this and get

Hence the answer is

hello from mrbilldoesmath!

answer:

x - 3

discussion:

x^2 - 9 = (x-3) (x+3)   so

(x^2-9)/ (x + 3) = x-3

you,

mrb

i believe it's a.

i'm not sure on this one, most likely correct.