John gray brought a basic car for $8,250.00, with options that cost $324.00. there's a 6% sales tax in his state and a combined $50.00 license and registration fee. what was john's total cost?

 Cost of basic car = $8250
Optional cost = $324
Total cost of basic car and optional items for John= (8250 + 324) dollars
                                                                  = 8574 dollars
Then
Percentage of sales tax = 6%
Amount of sales tax = 8574 * (6/100) dollars
               = 514.44 dollars
License and registration fee combined = $50
Then total cost of John in regards to buying the car = 8574 + 514.44 + 50
                                                                                    = 9138.44 dollars
$9,138.44 is the correct option in regards to the question given.

8250+324=8574
find tax then add license and register fee

8574*0.06=514.44

total is 8574+514.44=9088.44
then add 50
9138.44

total is $9138.44