Ajet flew for 2 hrs before strong head winds reduced its speed by 40mph. if it took the plane 5 hrs to travel 1,380 miles, find its speed before flying into the head winds.

F(x)=x/2-2 and g(x)=2x^2+x-3 find (f+g)(x)

An arc subtends a central angle measuring 7pi/4 radians what fraction of the circumference is this arc?

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?