Atotal of 565 tickets were sold for the school play. they were either adult or student tickets. there were 65 more student tickets sold more than adult. how many adult tickets were sold?

Cam bought some used books for $4.95. he paid $0.50 each for some books and $0.35 each for the others. he bought fewer than 8 books at each price. how many books did cam buy?

Rockwell hardness of pins of a certain type is known to have a mean value of 50 and a standard deviation of 1.1. (round your answers to four decimal places.) (a) if the distribution is normal, what is the probability that the sample mean hardness for a random sample of 8 pins is at least 51?

Divide. write in the simplest form. 4 1/6 divided by 10