Use compatible numbers to estimate the quotient. .

308.3 divided by 15 could be estimated by rounding 308.3 down to 300 and dividing that by 15:

300
= 20
  15

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.