Movie soundtracks contain which of the following?
a. music
b. sound effects
c. dialogue
d. all of the above

Selling merchandise on your web comic site is not recommended as a source of revenue

Which of the following lists of ordered pairs is a function?

The caves at lascaux were closed in 1963 because a. vandals were destroying the paintings b. the collective breath of the many visitors caused the paintings to corrode c. the weather was destroying the paintings d. the government of france wanted scholars to be able to study the work without distraction