Astore sells gift cards in preset amounts. you can purchase gift cards for $10 or $25. you have spent $285 on gift cards. write an equation in standard form to represent this situation. what are three combinations of gift cards you could have purchased

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.