Kim started hiking at 10: 40 am. she stopped for lunch at 1: 10 pm, having hiked an average rate of 3 miles per hour. how far did she hike?

So first find time elapsed
10:40-11:40=1
11:40-12:40=1
12:40-1:10=0.5 or 30 mins

so add
1+1+0.5=2.5, 2 hours 30 mins

3 miles per hour
3 times numberof ohours
3 times 2.5
7.5

answer is 7.5 miles 

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.