Agroup of 7 campers has four hours to hike to a lighthouse and back before sundown. the lighthouse is 28 m high. it is located 12 km from camp. how fast do they have to walk?

Look i don’t know the answer to this but someone else will so just wait a little bit longer

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.

It will might be false