What do you add to 4 1/8 to make it 6

Which value is not a solution of 8x^3 – 1 = 0

Orly uses 2 cups of raisins for every 12 cups of trail mix she makes. how many cups of trail mix will she make if she uses 8 cups of raisins?

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?