A normal distribution has a mean of 20 and a standard
deviation of 4. Find the Z scores for 28?

anyone? find the second, fifth, and ninth terms of a sequence where the first term is 65 and the common difference is -7. 72, 93, 121 72, 79, 86 58, 37, 9 58, 51, 44

Which expression is equivalent to the expression shown?

This is about circle theorems. someone asap : (