Which table represents the same proportional relationship as the equation y = 36 x?

How do you answer this question? (step by step)

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?

Dean and karlene get paid to write songs. dean is paid a one-time fee of $20 plus $80 per day. karlene is paid a one-time fee of $25 plus $100 per day. write an expression to represent how much a producer will pay to hire both to work the same number of days on a song.