Ascale on a blue print drawing of a house shows that 10 centimeters represents 2 meters. what number of actual meters are represented by 18 centimeters on the blue print?

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?