Hello! I've tried answering the questions from the attached file and made program for it in the process. Here are my answers to all questions for a, b and c files, except the third question about mismatched format, which I'd like explained if you decide I'm the man for the job:
1. a: Mercury, b: Mars, c: Mars
2. a: 990, b: 9279, c: 1430213
4. a: 25%, b: 28.5%, c: 27.083333333333332%
5. a: 2, b: 59, c: 7639
6. a: 2334.6363636363635, b: 2357.638095238095, c: 2371.9475832577427
7. a: 0, b: 5, c: 1533
If you are interested, I have the program already done, except for the third question, which I'm sure won't be problematic either, so feel free to contact me. Cheers!