Lili needs to buy colored pencils . She buys 1 red , 2 yellow and 2 blue pencils . In tatal , she will buy 25 colored pencils . How many yellow pencils will lili expect to buy ?

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."

Angles r and s are complementary. the measure of angle r is 31 degrees. which equation can be used to find angle s?

Identify this conic section. x2 - y2 = 16 o line circle ellipse parabola hyperbola