The function a(b) relates the area of a trapezoid with a given height of 12 and one base length of 9 with the length of its other base. It takes as input the other base value, and returns as output the area of the trapezoid. am) = 12 +9 2 Which equation below represents the inverse function b(a), which takes the trapezoid's area as input and returns as output the length of the other base? O A. bla) = O B. D(A) = + 9 O c. bla) = 5+6 ( O D. b(a) 8-9​

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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?

Aubrey read 29 books and eli read 52 books what number is equal to the number of books aubrey read?