Find the area of the base of each cone

At $1.32 million, they closed last month percent above what they paid in 2007." how much did they pay in 2007?

Need showing work for this problem 56.25 ×25.80

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.