27. which situation could the equation below represent?

-2 ∙ 15 = -30

a. jake owes 2 people $15, so he owes a total of $30 b. the bottom of a pond is 2 meters below sea level. a nearby hill rises 15 meters above sea level. the vertical distance from the bottom of the pond to the top of the hill is 30 meters c. a scientist controls the temperature of a substance so that it decreases by 2° per minute over fifteen minutes. the temperature decreases by a total of 30° d. emma lost 2 points on her first turn in a game. she earned 15 points on her second turn. she has a total of -30 points