Does anyone know the written equation to this please?

Which is a reasonable estimate of the amount of water in a small, inflatable pool used by children?

Which expression gives you the distance between the points (5,1)and(9,-6)

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?