Respuesta :

Answer:

Which grade is this from?

Step-by-step explanation:

maybe i can figure it out. :D

Answer:

A= -3, B= 3, C= -2

Step-by-step explanation:

If "y" is -x minus 3, then y= 3. That's box a.

If "y" is zero, then 3-3= 0. Box b is 3.

-(-1)-3= 1-3= -2 = x. Box c is -2