Siince 2nd equation is already equal a, subsitute b-2 for a in the other equation
b-2-3b=28
-2-2b=28
add 2 to both sides
-2b=30
divide both sides by -2
b=-15
sub back
a=b-2
a=-15-2
a=-17
(a,b)
(-17,-15)
3rd choice
Answer:
The choice B.

Step-by-step explanation:

I hope I helped you^_^
The square root of .25 is rational because it is a terminating decimal.
√(.25)=05
Answer:
I think Quadrant 1. I;m not trying to just answer for the points
Step-by-step explanation: