Answer:
180
Explanation:
Let the cost per person be C while the number of people who share the mountain cabin be P, we know that they are inversely related, meaning that an increase in C might be due to a decrease in P while a decrease in C might be due to an increase in P.
Mathematically PC = K
Let k be the constant of proportionality
Using the values we were given in the question,
K = PC = 36 * 5 = 180