I have a bag of coins. In it, one third are gold, one fifth of them are silver, two sevenths are bronze, and the rest are copper. My bag can hold a maximum of 200 coins. How many coins are in my bag?

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.