Answer:
The total amount paid by Skylar is $1.19xx
Explanation:
Here, we want to give a representation of the total amount paid;
That will be;
Subtotal + tax + tip
Hence we have;
xx + (4% of xx) + (15% of xx)
= xx + (4/100 * xx) + (15/100 * xx)
= xx + 0.04xx + 0.15xx
So we have;
xx( 1 + 0.04 + 0.15)
= xx ( 1.19)
The total amount paid is thus $1.19xx