What is 11k+9=42 ? and how to do the work for it

The vector matrix [2/7] is dilated by a favor of 1.5 and then reflected across the x axis. if the resulting matrix is [a/b] then a= and b=

How do you create a data set with 8 points in it that has a mean of approximately 10 and a standard deviation of approximately 1?

Ana drinks chocolate milk out of glasses that each holdof a liter. she has of a liter of chocolate milk in her refrigerator. 10 how many glasses of chocolate milk can she pour?