128/5 square root
it's for test corrections

Create a data set with 8 points in it that has a mean of approximately 10 and a standard deviation of approximately 1.

Two friends are reading books. jimmy reads a book with 21,356 words. his friend bob reads a book with one-and-a-half times as many words. which expression represents the number of words bob reads?

Car a and car b were in a race .the driver of car b claimed that his car was twice as fast as car a