Answer: the answer is c
Step-by-step explanation:
A and d seem correct to me.
b and c are definitely wrong.
Answer: A (x,y) is your original. Your answer after would be A' (-x,-y) you would change the sign. If its negative it becomes positive, and if it'd positive it becomes negative.
Answer:
5
Step-by-step explanation:

<em>G</em><em>CF</em><em> </em><em>=</em><em> </em><em>5</em>