Rewrite the expression below. -2a (a+b-5) + 3(-5a+2b) + b(6a+b-8)
The coefficient of the a^2 term is
A. -3
B. -2
The coefficient of ab term is
A. -4
B. 4
C. 8
The coefficient of b term is
A. -2
B. 2
C. 14

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?

Atrain leaves little? rock, arkansas, and travels north at 90 kilometers per hour. another train leaves at the same time and travels south at 80 kilometers per hour. how long will it take before they are 680 kilometers? apart?

Klmn and pqrs are similar trapezoids. which side of pqrs corresponds to lm