What percent is $58 of $75 (to the nearest hundredth)? 7.73% 773.33% 0.77% 77.33%

What is the range? can’t seem to find it out

Find the maximum value of p= 4x + 5y subject to the following constraints :

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.