15. a thesaurus is a book that's useful for finding a. synonyms. b. definitions. c. frequently misspelled words. d. famous quotes.

Its a. sorry if its wrong.

the correct answer is dilapidated.

hope this (:

. a function is a relation in which each input has only one output. in the relation , y is a function of x, because for each input x (1, 2, 3, or 0), there is only one output y. x is not a function of y, because the input y = 3 has multiple outputs: x = 1 and x = 2.