We have to find Ray`s total cost. We know that he bought a car with a basic costing $10,150.00 and with options costing $738.00. So we have to add: $10,150.00 + $738.00 = $10,888.00. Then there is a 6% sale tax. $10,888.00 * 1.06 = $11,541.28. Finally, there is a combined $50.00 license and registration feee: $11,541.28 + $50.00 = $11,591.28. Answer: Ray`s total cost was <span>$11,591.28.</span>