If a 50 inch flat screen now costs $1200, what will it cost in 3 years. the cost of a large flat screen television is decreasing 20% per year

50 inch flat screen will cost 300

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.