Simplifying the radical

In triangles abc and wxy, a=w and b=x which of the following must be true to prove abc=wxy by the aas theorem? a.ab=bc b.bc=xy c.ab=wx d.

At $1.32 million, they closed last month percent above what they paid in 2007." how much did they pay in 2007?

The radius of the earth is two times the radius of the moon. what fraction of the volume of the earth is the volume of the moon?