What is the mean of the set : 95,45,37,82,90,100,91,78,67,84,85,8 5,82,91,93,92,76,84,100,59,92,77,68 ,88

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)

I’m still confused on how to work the percentages

We have 339 ounces of jam to be divided up equally for 12 people how muny ounces will each person get