Answer: Sales tax = $8.87, total price = $132.95
Each headphone is sold at the rate of $31.02
4 head phones will be sold at
4 x $31.02
= $124.08
The total cost of 4 head phones = $124.08
The sales tax rate = 7.15%
The sales tax = sales tax rate x initial cost of the headphones
The sales tax = 7.15/100 x 124.08
The sales tax = 0.0715 x 124.08
Sales tax = $8.87
Total price = cost of the 4 head phones + sales tax
Total price = 124.08 + 8.87
Total price = $132.95
