Answer:
a. No
b. Yes
c. No
Step-by-step explanation:
a. For BC and B'C to both be parallel to the y-axis when BC is parallel to the y-axis the figure must be rotated by a multiple of 180 degrees.
b. When you rotate a figure none of the angles in the figure change.
c. For D and D' to have the same coordinates the figure must be rotated by 360.
Let's call that the Multiplicative Identity Property.
1 is the identity element for multiplication. Those are just fancy words for the obvious property that anything times 1 is itself.
-1/38 is your inverse of 38
hope this helps