What are the solution of the following systems

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

Ann and betty together have $60 ann has $9 more than twice betty’s amount how much money dose each have

Three people are traveling and need to exchange the currency of their native country for the currency of the country they are visiting. drag each exchange to the category that shows the ratio of currencies in that exchange.