An engineer traveled 130 mi by car and then an additional 690 mi
by plane. the rate of the plane was three times the rate of the
car. the total trip took 6 h. find the rate of the car.

Quick! a survey of 57 customers was taken at a bookstore regarding the types of books purchased. the survey found that 33 customers purchased mysteries, 25 purchased science fiction, 18 purchased romance novels, 12 purchased mysteries and science fiction, 9 purchased mysteries and romance novels, 6 purchased science fiction and romance novels, and 2 purchased all three types of books. a) how many of the customers surveyed purchased only mysteries? b) how many purchased mysteries and science fiction, but not romance novels? c) how many purchased mysteries or science fiction? d) how many purchased mysteries or science fiction, but not romance novels? e) how many purchased exactly two types of books?

Mackenzie needs to determine whether the rectangles are proportional. which process could she use? check all that apply.

Biggest exam of the which of the following are polynomial functions?