Task 3: System of Rational Expressions Recall that a set of elements (numbers or expressions) is closed for a given mathematical
operation if performing the operation on any two elements in the set always results in an
element of the set.

If you are just building your payment history, how many points from a perfect score will you possibly miss?

Solve the system of equations y= 3/2 - 1, -x+ y =-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?