Answer:
A) 2x*2 +6x -3x - 9= 2x*2 +3x -9
B) 2yx*2 +2yx +2y +3x*2 +3x +3
C) 36x*2 y +48yx +3xy*2 + 4y*2
D) 2x*3 - 4x*2 y + 3x -6y
On the first day of school last year, Cody was 148.5 cm tall.
Simple...
you have: (2,3) and (-2,6)
Using

-->>

Thus, your answer.
Answer:
I think it's rational number