Kepler's third law describes how a planet's average distance from the Sun, R (in astronomical units, AU), is related to its orbital period, T (in Earth years). T^2=R^3 Planet X's mass is 6×10^24 kg and it is 2 AU from a star. Planet Y's mass is 2×10^27 kg and it is 8 AU from the same star. Choose the correct answer from each drop-down menu to complete the statement.