At a used bookstore, the price of a hardcover book is three times the price of a paperback book. If 40 hardcover books were sold for a total of $480 and the combined sales of hardcover
and paperback books totaled $600, how many paperback books were sold?

A) 10
B) 12
C) 30
D) 40

Factor the polynomial by its greatest common monomial factor.

How do newtons third law of motion demonstrates on a rollar coster

Asample of 200 rom computer chips was selected on each of 30 consecutive days, and the number of nonconforming chips on each day was as follows: the data has been given so that it can be copied into r as a vector. non.conforming = c(10, 15, 21, 19, 34, 16, 5, 24, 8, 21, 32, 14, 14, 19, 18, 20, 12, 23, 10, 19, 20, 18, 13, 26, 33, 14, 12, 21, 12, 27) #construct a p chart by using the following code. you will need to enter your values for pbar, lcl and ucl. pbar = lcl = ucl = plot(non.conforming/200, ylim = c(0,.5)) abline(h = pbar, lty = 2) abline(h = lcl, lty = 3) abline(h = ucl, lty = 3)