Help 100 points logarithm

Number 4. In other words, you have an unknown number (X), and then if you divide that X by 3 you get 13. Then what is that X? Therefore, the answer to what divided by 3 equals 13 is 39. You can prove this by taking 39 and dividing it by 3, and you will see that the answer is 13.

In all honesty, there really is no “work” per say to show. mainly it’s just using the process of elimination. the question is asking which domain(s) would be the most appropriate for the function c(n). n is the number of observed vehicles so right away, 1, 2, and 3 can be eliminated.why? 1, 2 start in the negatives and therefore it is impossible to observe negative cars. so, #4 would be the best answer to the given problem.