How would I do this at the bottom it says solution

Which of the following properties can be used to show

Solve with work both bert and ernie received an increase in their weekly salaries. bert's salary increased from $520 to $520. ernie's salary went from $580 to $645. find the percent of increase for each salary. what was the larger of the two percents ?

Create a data set with 8 points in it that has a mean of approximately 10 and a standard deviation of approximately 1.