Answer:
$10.32 is the sales tax.
$139.32 is the total price.
Explanation:
Sales tax is 8% of the original price. 
First, change the percentage into a decimal, by moving the decimal point to the left two place values: 8% = 0.08
Next, multiply 129 with 0.08: 
129 x 0.08 = 10.32
$10.32 is the sales tax.
Then, add 10.32 to the original price: 
10.32 + 129 = 139.32
$139.32 is the total price.