Please solve number 13, 14, 15

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Twelve friends shared 8 small pizza equally.how many pizzas did each person get?

What’s -11-33k and factor each expression completely

Will mark determine whether the conjecture is true or false. give a counterexample for any false conjecture. given: points r, s, and t conjecture: r, s, and t are coplanar. a) false; the points do not have to be in a straight line. b) true c) false; the points to not have to form right angles. d) false; one point may not be between the other two.