A chemistry student wants to obtain 18 mL of a 53% salt solution. He currently has a 50% salt solution and a 60% salt solution on hand. How much of each
solution will need to be mixed together to yield 18 mL of a 53% salt solution?

The answer would be option 4

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.