On a certain hot summer's day, 475 people used the public swimming pool. The daily prices are 1.25 for children and 2.50 for adults. The receipts for admission totaled 845 How many children and how many adults swam at the public pool that day?

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.

Hmmm i had this before , give me a sec

Ithink it is b and d