How long would it take a car with a top speed of 203 mph to travel 2.67 miles up a slope of 6.4% accelerating at 0.092 g's

Given a normal distribution with µ =50 and σ =4, what is the probability that 5% of the values are less than what x values? between what two x values (symmetrically distributed around the mean) are 95 % of the values? instructions: show all your work as to how you have reached your answer. don’t simply state the results. show graphs where necessary.