Are these fractions equivalent or nonequivalent? xy/4y x/4

Solve -.016x= -16. need solving this

Compute the standard deviation of the following set of data to the nearest whole number. 10, 10, 15, 20, 25

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.