2.S: 4 = 1.8136 First-class letters cost $0.49 for the first
ounce and $0.22 for each additional ounce
What is the cost of a 5-oz letter?
HELP plz now

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.