Mr grays quiz was normally distributed with a mean of 25 and a standard deviation of 10 find z-scores for each of the following (a) 40 (b) 27 (c) 6

Isabelle is mixing red and blue paint to make purple paint she adds 3/10 of a fluid ounce of red to 12/25 of a fluid ounce of blue to make 1 1/30 fluid ounces of purple how many fluid ounces of red paint ounces of red paint will she need to make 3 fluid ounces of purple paint