What are all these problems answers?

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

Isabel graphed the following system of equations. 2x – y = 6 y = -3x + 4 she came up with the solution (2,-2). what were the 3 steps she did to get that solution? (make sure they are in the correct order)

Asinusoidal function whose frequency is 1/6pi