Jairo spent $40.18 on 3 music CDs. Let’s solve for the original prices of each CDs. => The sales tax added is 2.33 dollars => 40.18 dollars – 2.33 dollars => 37.85 dollars he used 1.00 dollar coupon during his purchase => 37.85 + 1.00 = 38.85 dollars => now, we need to divide this amount to 3 for 3 CDs => 38.85 / 3 => 12.95 the cost of each CD is 12.95