Arectangle is 6 meters long and 4 meters wide. what is the perimeter of the rectangle?
10 meters
20 meters
10 square meters
20 square meters

Opposite sides of a rectangle are equal so...

perimeter = (2 x 6) + (2 x 4)
perimeter = 12 + 8 = 20 meters

note** area is measured in units squared.  Perimeter is measured in units.

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.