If you travel 12,726 ft in 18.75 minutes what is your speed in knots?

12,726 feet per 18.75 minutes = 12,726/18.75 =
678.72 feet per minute

a knot = 1.852 kilometres per hour (exactly) =
1,852 meters per hour =
30.8666666667 meters / minute
1 foot =  0.3048 meters exactly
1 knot = 30.8666666667 / .3048 = 101.2685914262 feet / minute

=678.72 ft min/ 101.2685914262 ft min =
6.7021767603 knots
6.7022 knots (rounded)

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.