B.
estimate a 15% tip.
estimate 3, tip id. 155
oss so what percent of the original des raymond pay
sneakers are normally $89.99 but are discounted to $56.49. what percent of the original does raymond pay?

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.