How do you write an equation for a proportional relationship shown on a table

Aflute is on sale for 20% off. including the discount and 8% tax, the sales price is $216.

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?

What is the radius of a circle with an area of 78.5 cubic inches? use 3.14 for pie