The martinez family started their garage sale one half hour after the smith family the smith family started their garage sale one hour before the carson family who started theirs at 8: 30 a. m. at what time did the martinez family start their garage sale? show work

Students are getting signatures for a petition to increase sports activities at the community center. the number of signatures they get each day is 3 times as many as the day before. the expression 3^6 represents the number of signatures they got on the sixth day. how many signatures did they get on the first day?