Shane's rare book collection contains 40 books. He donates 15% of his books to the national library, sells 14 of his books to a rare book dealer, and sells 4 books online. How many books remain in Shane's book collection?

Little’s law firm has just one lawyer. customers arrive randomly at an average rate of 6 per 8 hour workday. service times have a mean of 50 minutes and a standard deviation of 20 minutes. how long does a customer spend at little’s law firm on average?

Me with this one question, and i'll upvote the brainliest answer

An ulcer medication has 300 milligrams in 2 tablets. how many milligrams are in 3 tablets?