Muthu reads 20 pages of a book in a day. after 6 days, 2/5 of the book is still unread. how many pages are there in this book?

The two-way frequency table below shows data on playing a sport and playing a musical instrument for students in a class.

David leaves his house to go to school. he walks 200 meters west and 300 meters north. how far is david from his original starting point?

Assume that adults have iq scores that are normally distributed with a mean of mu equals 100 and a standard deviation sigma equals 20. find the probability that a randomly selected adult has an iq less than 132. the probability that a randomly selected adult has an iq less than 132 is?