Is (-8,7), (0,1), (2,-6), (2,3), (7,9) a function?
What’s the domain and range?

If y varies as x, and y=8 as x=4 what will be the value of y if x=2

21/2 divided by 3 1/3 = s divided by 4 1/4 . what is s?

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?