Choose all that correctly compute the total cost, including the discount and tax. (round to the nearest hundredth)

A) 25% off $39.25, and an 8% sales tax
total cost = $31.79

B) 20% off $66.75, and an 8% sales tax
total cost = $57.67

C) 40% off $45.90, and an 8.5% sales tax
total cost = $29.88

D) 10% off $22.75, and a 7.5% sales tax
total cost = $20.10