Respuesta :
Price of item before tax = $4
Price of item after tax = $4.32
Difference = Price of item after tax-Price of item before tax= 4.32 - 4 = 0.32
Difference in price = $0.32
Now we have to find sales tax rate.
Sales tax rate if given by dividing the difference in price by original price and multiplying it by 100.
[tex]Sales tax rate = \frac{Difference}{Original price}*100[/tex]
[tex]Sales tax rate = \frac{0.32}{4}*100[/tex]
Sales tax rate = 8%
Answer: The sales tax rate of the item is 8%.