Pls help me plsss I’m failing bad

$82.22

Step-by-step explanation:

Price of meal before discount: $78.31

They leave a 20% tip that applies to the cost of the meal before the discount, so the tip is 20% of $78.31.

Now we calculate the amount of the tip.

20% of $78.31 =

= 0.2 * $78.31

= $15.66

The tip is $15.66. We will apply it later after we use the discount.

The meal's original price was $78.31 before the discount.

The discount is 15%. Now we find the amount of the discount.

15% of $78.31 =

= 0.15 * $78.31

= $11.75

The discount due to the coupon is $11.75

The final price of the meal is the original price, minus the discount, plus the tax.

final price = $78.31 - $11.75 + $15.66 = $82.22