Select the best answer for the question. 7. Two homes share the same water main. Home A is located 20 feet higher than home B. If home A's inlet water pressure measures 60 psi, what would you expect the inlet pressure to measure at home B? O A. 686 psi O B. 68.6 psi O C. 60.86 psi O 0.64.3 psi​

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.