(E) (−1, 0)
5 . If Sam types at a rate of x words per minute, how many minutes, in
terms of x, will it take him to type 500 words?
(A) 500 x(B) 500 − x(C) 500 + x(D)(E)
6 . Mary spends 40% of her monthly earnings on rent and 10% of the
remaining amount on
entertainment. If she spends $800 for rent, how much does she use for
entertainment?(A) $120
(B) $180
(C) $200
(D) $800
(E) $2,000