Need help asap thanks

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.

What adds to be the bottom number but also multiplies to be the top number with 8 on the bottom and 15 on top

Which of the following is best modeled using a linear equation y=ax+b, where a is less than 0?