Mel bought a box of holiday greeting cards. He sent 8 to relatives and loaned a friend 2. Then he mailed half of the remaining cards to friends. He had 6 cards left. How many greeting cards were in the box he bought?

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."

Solutions for 2x+7 less than or equal to 3x-5

Look at this pattern ; 1,4,9, number 10000 belongs in this pattern . what’s the place of this number?