Art noticed that if he takes the opposite of his age and adds 40, he gets the number 28. how old is ary?

-Age + 40 =28

subtract 40 from each side

-Age = -12

divide by -1 on each side

Age = 12

Art is 12

Art is 12

i really dont know

step-by-step explanation:

hello from mrbilldoesmath!

answer:

the domain is the set { -2, 0, 2, 3}

discussion:

the domain is the set of x values in the ordered pairs (x,y). taking the x, or first component, of each ordered pair gives   -2, 0, 2, 3.

you,

mrb