Sales tax is added to the price of items sold on ebay. if someone in arizona buys an item online for $22.50 and the state sales tax rate is 6.6%, what is the final selling price

Price of the online item bought by someone in Arizona = $22.50
Percentage of state sales tax that needs to be paid = 6.6%
Then
Amount of sales tax that needs to be paid = (6.6/100) * 22.50
                                                                    = 148.5/100 dollars
                                                                    = 1.48 dollars
So
The final price that needs
to be paid for the online item = (22.50 + 1.48) dollars
                                              = 23.98 dollars

The equation is y=4/3x+4

Step-by-step explanation: