To attend a basketball game, an adult’s ticket costs $35 and a child’s ticket costs $25. If c children and 3 times as many adults go to the game, the expression represents the amount they spend in dollars on tickets. If the number of children who go to the game is 2, it costs the group for the tickets.

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.