For a fund-raiser, a boy scout troop sold two sizes of popcorn boxes-small, s for $3 and large, g, for $6. If 302 boxes were sold with cash receipt of $1,803, how many large boxes were sold?

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.