Arianna squared a number, n, and then multiplied the number by 4. She multiplied a second number, s, by -8 and added the two products. Derrick squared the first
number, n, and then multiplied the number by-6. He multiplied the second number
by 14 and added the products. Arianna and Derrick added their results. Which of the
following represents Arianna's and Derrick's sum?

Write an equation for the function that includes the points (1,4/5) and (2,2/3)

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?

Atruck can be rented from company a $50 a day plus $0.60 per mile. company b charges $20 a day plus $0.80 per mile to rent the same truck. find the number of miles in a day at which the rental costs for company a and company b are the same