Jade is painting a rectangular wall. the wall is 4 1/4 yards long and 2 2/3 yards high. the formula for the area of a rectangle is a=bh. what is the area of the wall? answer as a mixed number in simplest form.

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.