150 children got one book, there are 9 books in a pack. how many packs are needed?

I hope this helps you

if 1 one pack hold 9 book

? pack hold 150 books

?.9=1.150

?=150/9

?=50/3

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.