A group of students was asked, "How many hours did you watch television last week?" Here are their responses.
19, 20, 17, 6, 19, 13, 13
Find the mean number of hours for these students.
If necessary, round your answer to the nearest tenth.

Fanny mendelssohn manages all the magazines and paperback books at a local grocery store. she prices many paperbacks to sell at $7.99. the cost to the store is $5.29. what is the markup rate on a paperback book, based on its cost?

What value is a discontinuity of x squared plus 8 x plus 4, all over x squared minus x minus 6?

Tatiana wants to give friendship bracelets to her 32 classmates. she already has 5 bracelets, and she can buy more bracelets in packages of 4. write an inequality to determine the number of packages, p, tatiana could buy to have enough bracelets.