Questions 166-168 refer to the following
advertisement. Highwoods Book City New Chain Store
Opening Highwoods Book City is proud to announce
the opening of a new chain store on Sunday, February. 16th at 307 River Road,
just opposite the KFC. The new chain store will offer you
various books, ranging from classic books to modern ones, from prose to novels,
from comic books to scientific ones. It also provides medical books for elderly
people, cooking materials for housewives, fashion magazines for young ladies,
and knowledge-based books for students. To mark this special
occasion, we offer a special open of discount to our customers. Just fill in the
following coupon and bring it to us between February 16th to March 16th, and you
will enjoy a 20% discount on any book you purchase. If a book costs 15 dollars, how much can one save with the discount