Final answer:
To calculate the total amount that Michael pays for the large pepperoni pizza, we need to calculate the selling price and the tip amount, and then add them together.
Step-by-step explanation:
First, let's calculate the selling price of the large pepperoni pizza.
The pizzeria marks up the cost of ingredients by 225%, which means they add 225% of the cost to the original amount. So, 225% of $3.80 is:
$3.80 imes rac{225}{100} = $8.55
Next, let's calculate the tip amount. Michael tips the driver 20% of the selling price, which is 20% of $8.55:
$8.55 imes rac{20}{100} = $1.71
Finally, let's calculate the total amount that Michael pays by adding the selling price and the tip amount together:
$8.55 + $1.71 = $10.26
So, Michael pays a total amount of $10.26 to the nearest cent.