Question a college bookstore marks up the price that it pays the publisher for a book by 40 %. if the selling price of a book is $ 70.00 , how much did the bookstore pay for this book

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?

Which graph represents the given linear function 4x+2y=3

How is this equation completed? i cannot find any examples in the book.