The graph is/has A. order 2 rotational symmetry about the origin
B. odd
C. symmetric about the y-axis
D. neither even nor odd

Liam's parents are driving three times as fast as liam is biking, but they left later than he did. if his parents caught up with him two hours after he left, how much later than liam did they leave?

Need on this geometry question. explain how you did it.

The mean of 10 values is 19. if further 5 values areincluded the mean becomes 20. what is the meanthese five additional values? a) 10b) 15c) 11d) 22