Each set of ordered pairs represents a function. write a rule that represents the function

1 (0,0), (1,2), (2,8), (3,18), (4,32)

Solve for x, y, and z. show all steps.

Mary used 1/7 of a spool of ribbon to complete 4 projects. she used the same amount of ribbon on each project. how much ribbon did she use on each project?

Brian, chris, and damien took a math test that had 20 questions. the number of questions brian got right is 14 more than the number of questions chris got right. damien correctly answered 2 less than the number of questions chris answered correctly. if brian and damien have the same score, which statement is true?