The points in a coordinate plane are reflected in the y-axis. in general, every point (x, y) is mapped onto what point

Which statement accurately explains whether a reflection over the x-axis and a 180° rotation would map figure acb onto itself?

Can someone tell me if this is perpendicular? !

You just purchased two coins at a price of $670 each. because one of the coins is more collectible, you believe that its value will increase at a rate of 7.1 percent per year, while you believe the second coin will only increase at 6.5 percent per year. if you are correct, how much more will the first coin be worth in 15 years?