Acertain colony of bacteria triples every ten minutes every 10 minutes. its length is now 1 millimeter. how long will it be in 40 minutes

The bacteria triples every ten minutes. Times three by 40 you get 120
And the length would be 4 millimeters

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.