Skylar goes to a restaurant and the subtotal on the bill was xx dollars. A tax of 4% is applied to the bill. Skylar decides to leave a tip of 15% on the entire bill (including the tax). Write an expression in terms of xx that represents the total amount that Skylar paid.

The total amount paid by Skylar is $1.19xx

Step-by-step 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

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step-by-step explanation: