Kavi solved the system
of equations as shown. What mistake did Kavi
make? What is the correct solution?
1:3x + 4y = 33
2:2x + y = 17 y = 17 - 2x
3:2x + (17 — 2x) = 17
4:2x + 17 — 2x = 17
5:2x — 2x + 17 = 17
6:17 = 17
7:Infinitely many solutions

help please

True or false? a circle could be circumscribed about the quadrilateral below.

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?

In the picture below, line pq is parallel to line rs, and the lines are cut by a transversal, line tu. the transversal is not perpendicular to the parallel lines. note: figure is not drawn to scale. which of the following are congruent angles?