If you triple the amount of ground ginger to make more pies, how much nutmeg should you use to keep the recipe proportional

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.

Which of the following parabolas opens up?

Ineed the solution to this problem and the steps.