Recent content by sstoning

I think the equation for the period of a planet is needed; but I'm not sure how to use it.

If the Earth's period is 365.25 days and its distance to the (center of the) Sun is one astronomical unit (AU), what is the period, to the nearest day, of an asteroid in a circular orbit about the Sun with a radius of 3.04 AU? please show steps so that I can learn. thanks a lot.