you see "Try Again" this means you got the wrong answer and you have another chance. Should wer right on your 2nd attempt, you will receive 75% of the marks allocated for that question. "Last Try", this means you got the wrong answer and you have one last chance. Should you get your 2nd or 3rd attempt, you will receive 75% or 50% of the marks allocated for that question *Question 204: Gravity/Kepler's Laws Suppose a small planet is found orbiting the Sun with a period of 8.4 years. What is the mean distance in metres from the Sun to this planet? The mass of the Sun is 1.989 x 1030 kg. Calculate the answer to three significant figures. State the unit of measurement in the answer. Answer: Check