The distance between two planets is 3.04 × 10^8 light years. What is the distance between the two planets, in parsecs? (1 parsec = 3.26 light years) Answers:
A) 9.3 × 10^5 B) 9.9 × 10^6 C) 9.3 × 10^7 D) 9.9 × 10^7 E) 10.1 × 10^8
3.04*10^8 light years = 3.04*10^8/3.26 parsecs.   3.04/3.26 is a little bit less than 1, something like 0.9, thus 3.04*10^8/3.26 = ~0.93*10^8 = 9.3*10^7.   Answer: 9.3 × 10^7.
<result>C</result>
The distance between two planets is 3.04 × 10^8 light years. What is the distance between the two planets, in parsecs? (1 parsec = 3.26 light years)