Answer:
Step-by-step explanation:
31.32
Part a is 2x+5 because you add monday’s equation and tuesday’s
part b is 7x+2 because you add all equations together
-12 / 23 = -0.52
so none of those are the correct answer.
if the 23 is suppose to be the fraction 2/3
then you have -12 / 2/3 which = -12 * 3/2 = -36/2 = -18