$\"\"$

Amount of sales tax = the tax is $\"\"$ of the price of the hat.

Amount of sales tax $\"\"$

$\"\"$ ( $\"\"$ )

$\"\"$ (Use a calculator to multiply) $\"\"$

Total price of the hat = Original Price + Amount of sales tax.

$\"\"$

$\"\"$ (Subtract: $\"\"$ ) $\"\"$

Total price of the hat is $\"\"$ .