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Mustafa contributes 11% of his $67,200 annual salary to his 401k plan. what is his pretax income

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?

The zoo collects $9.60 for every 24 tickets sold. how much will be collected for 400 tickets?