we are given

To find solution , we can factor it and then we can solve for x
step-1: Factoring


step-2: Solve for x




so, option-C and option-F...........Answer
The answer should be A, if he marked it up 70% just multiply 66 by 1.7 for your answer.
$18.00 total payment
$15.00 x .05(tax) =$ .75
$15.00 x .15(tip) =$ 2.25
________________________
$ 3.00
+ $15.00
----------------------------------
$18.00