The glacier traveled 7.3 kilometers.
Steps: there are 365 days in a year and the glacier travels 20 m per day. to find how many meters in one year, you multiply 365 by 20, which gives you 7300 meters in one year. The question asks for km, so you divide 7300 m by 1000 since 1000 m= 1 km. Then you end up with 7.3 km per year.
