A year on Mars is 686 Earth Days.
(1) Whicch is longer, a year on Mars or a year on Earth.
(2) By how many weeks is it longer?
Please explain how you got the answer. My answer was 82 1/2 weeks longers
1. A year on earth is 365 earth days so a year on mars would be longer.
2. 686-365= 321 days longer
321 days divided by 7 days in one week = 45.857 weeks longer.