Your friend goes to the store and buys a soda for $1.50, a cookie for $1.00, and a bag of pretzels for $2.10. an additional 9% sales tax is added to the bill. what is the total cost

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.

Idon’t know what the answer is i wish i could

Idon’t feel like doing the math but you need to do 2.24 divided by 7

Ihave, but this question is gonna probably get deleted.