I don’t understand how to solve it

x= $878.85

Step-by-step explanation:

1349.99=1350

1350=100%     you cross multiply and then divide by 100 you get x = 540

  x   =40%

504 is how much can be off the original price, 1350-504=810

You would pay 810 dollars if the coupon was 40% off. Now we gotta find how much is the tax rate.  

810=100%    do the cross multiply and then divide by a 100, you get x=68.85

x   =8.5

 Then you have to add your tax rate to the price that you are paying, 810+68.85=$878.85.

Hope this helps you!

mark other person brainliest

no solution

step-by-step explanation:

there is not enough information in the problem to solve.