David's last equation to solve is x/100+3/100=8/100. write and solve an equivalent equation with easier numbers that would give him the same answer.

Subtract 3/100 to both sides:



Cross multiply:



Divide 100 to both sides:



Or we could just multiply both sides of the equation by 100, to give us:



Subtract 3 to both sides:

The first one minimumi hope my answer you.

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.