Well first of all you got to show your answer.
Answer: .00604
Step-by-step explanation:
Hope this helps
No, because she will go over by .57 cents. So she won't be able to buy the gift. You can find the answer by dividing 18 by 7 and adding that answer to 18 to get the amount total you owe including tax.
It is a polynomial, and the degree is quartic
hope this helps