Toni can carry up to 18 lb in her backpack. her lunch weighs 1 lb, her gym clothes weigh 2 lb, and her books (b) weigh 3 lb each. how many books can she carry in her backpack?

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.