Andy has 9 math books and 6 reading books. if he want to distibrute them evenly among some bookshelves so that each has the same combination of books with none left over what is greatest number of bookshelves andy can use.

5/6+7/8what is the answer sealsdbdbshd

What are the solutions of the system? y = x^2 + 2x +3y = 4x - 2a. (-1, -6) and (-3, -14)b. (-1, 10) and (3, -6)c. no solutiond. (-1, -6) and (3, 10)

Monitors manufactured by tsi electronics have life spans that have a normal distribution with a standard deviation of 1800 hours and a mean life span of 20,000 hours. if a monitor is selected at random, find the probability that the life span of the monitor will be more than 17,659 hours. round your answer to four decimal places.