A box contains a total of 12 books. Each hardcover book weighs 2 pounds, and each paperback book weighs 1 pound. the total weight of this book is 16 pounds the equation of the graph is

x + y = 12 2x + y = 16

find the number of the hard and paper covers:

A: 4 hardcover and 8 paperback

B: 8 hardcover and 4 paperback

C: 8 hardcover and 12 paperback

D: 6 hardcover and 6 paperback

Atravel agent is booking a trip to england, scotland, ireland, and france for a group of senior citizens. the agent sent surveys to the group, asking which countries they would like to visit, in order, and created the shown preference schedule (e = england, i = ireland, s = scotland, f = france). which country is the condorcet winner? number of votes 15 12 16 19 1st f e e i 2nd e s i s 3rd s i s e 4th i f f f 1. scotland 2. england 3. france 4.ireland