A.) The temperature of a substance decreased by 24°C per minute
for 3 minutes. What was the overall change of the temperature of
the substance?

Anyone know? will mark brainliest if correct

When you answer this can you explain

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.