Which graph shows the solution set for this inequality r + 9 < 12

Ima guess D because it would simplify to
r < 3

And I think without the line under the equality sign it’s an open circle so...

Arrow points left cause of the less than sign

You're gonna need to post the table

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.