Ah please help!
and explain the best you can

What is the range of the relation in the table below? x y –2 0 –1 2 0 4 1 2 2 0

Peter applied to an accounting firm and a consulting firm. he knows that 30% of similarly qualified applicants receive job offers from the accounting firm, while only 20% of similarly qualified applicants receive job offers from the consulting firm. assume that receiving an offer from one firm is independent of receiving an offer from the other. what is the probability that both firms offer peter a job?

Collin did the work to see if 10 is a solution to the equation r/4=2.4