Leila and jo are two of the partners in a business. leila makes $3 in profits for every $4 that jo makes. if jo makes $60 profit on the first item they sell, how much profit does leila make?

Monitors manufactured by tsi electronics have life spans that have a normal distribution with a standard deviation of 1800 hours and a mean life span of 20,000 hours. if a monitor is selected at random, find the probability that the life span of the monitor will be more than 17,659 hours. round your answer to four decimal places.