The value of a computer decreases with its age, until it is worth nothing A computer that was purchased new (age 0 years) for $2200 is worth
$1540 after 6 years.
The linear function V(x) that expresses the values of the computer as a function of the age (x) in years is V (x)= ___ ?
The value of the computer after 8 years is what?
After how many years will it be worth nothing?

Find the slope of a line given the following two points

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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?