Bus 60 arrives at the station every 6 minuets. however, bus 54 arrives at the same station every 9 minuets. after how many minutes will the buses be back at the station at the same time again?

Three minutes between

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.