A concession stand sells hamburgers. The revenue from the hamburgers is (30x+45) dollar. The revenue from drinks is (63x+84) dollars. The price of a drink is $3. Write an expression that represents the number of drinks sold.

The patient recovery time from a particular surgical procedure is normally distributed with a mean of 5.2 days and a standard deviation of 1.7 days. what is the probability of spending more than 2 days in recovery? (round your answer to four decimal places.)