Kenny buys mixed nuts at a corner market for $4.50 per pound. The cost is a function of the number of pounds of nuts bought. What is the graph of the function? Is the function continuous or discrete? Does anyone have the answer for the 4-4 lesson quiz? And if so could I get an explanation on how to do it?

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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?