Arestaurant has one price for adults and another price for children to eat at its buffet. two families ate at the buffet. the traymore family has two adults and three children and their bill was $49.50. the willis family has three adults and one child and their bill was $44.50. what is the cost for an adult to eat at the buffet and what is the cost of a child to eat at the buffet?

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."

What is the equation of this graphed line? enter your answer in slope-intercept form in the box.

How can you tell when x and y are not directly proportional?