Answer:
11
Step-by-step explanation:
(-3)²-3(-3)-7
9+9-7
11
Answer:
See below
Step-by-step explanation:
The initial ordered-pairs are 
We have a rotation of 90 degrees counterclockwise with respect to origin
Note. Previously the points were

After the rotation, we have

Thus, 
Then shifting horizontally to the right 2 units, we get ΔA'B'C'
Thus,

Answer:
C.
Step-by-step explanation:
Answer:
210x²c+252xc
Step-by-step explanation: