Respuesta :
the coupon is 35% off, therefore, she actually paid 65%
0.65(128.25) = 83.36 (what she paid without tax)
now we add the sales tax of 4%
83.36 (1.04) = 86.69 <== total cost
0.65(128.25) = 83.36 (what she paid without tax)
now we add the sales tax of 4%
83.36 (1.04) = 86.69 <== total cost