Solve the following system of equations: 5x + y = 9 3x + 2y = 4 A (−2, 5) B (1, 4) C (2, −1) D (4, −4)

The last time i bought this product , it cost $20.00 but it looks like it cost 29. 60 today? what is the increase

The vertices of a triangle are a(7,5), b(4,2), c(9,2). what is m

Asays "we are both knaves" and b says nothing. exercises 24–31 relate to inhabitants of an island on which there are three kinds of people: knights who always tell the truth, knaves who always lie, and spies (called normals by smullyan [sm78]) who can either lie or tell the truth. you encounter three people, a, b, and c. you know one of these people is a knight, one is a knave, and one is a spy. each of the three people knows the type of person each of other two is. for each of these situations, if possible, determine whether there is a unique solution and determine who the knave, knight, and spy are. when there is no unique solution, list all possible solutions or state that there are no solutions. 24. a says "c is the knave," b says, "a is the knight," and c says "i am the spy."