If the sales tax in your city is 4.7%, percent, and an item costs $164 before tax, how much tax would you pay on that item? how do i do this problem?

What is 4.7% of 164?

Approx. $7.71.
What you need to do first is to find the percentage as a decimal. In this case, it is 4.7%, which is .047 as a decimal. Multiply .047 by 164 and you'll have your answer.