Mercury makes a complete orbit around the sun in 88 days. mars makes a complete orbit around the sun in 687 days. in the exercises below, use compatible numbers and multiplication to make the estimates. 1. how many orbits around the sun will mercury make in 1,060 days? show your work. 2. now use a different operation to estimate for the same problem. show your work. 3. estimate the number of days it will take mars to complete 12 orbits. show your work