To find the sale price of three pizzas with a 20% discount applied, let's first calculate the total regular price and then apply the discount.

Step 1: Calculate the total regular price

Add the prices of the three pizzas: $10.75 + 16.75 + 20.75 = 48.25$

Step 2: Apply the 20% discount

A 20% discount means you pay 80% of the original price. So, we calculate 80% of $48.25$:

$48.25 \times 0.80 = 38.60$

Final Result:

The sale price of the three pizzas is $38.60.

Would you like more details or have any questions?

Related Questions:

1. What would be the discount amount instead of the sale price?
2. How would the price change if the discount were 25% instead of 20%?
3. How much would you save by purchasing with this discount compared to regular price?
4. What is the final price if only two pizzas were bought without a discount?
5. If there is a $5 flat delivery fee, what would be the total cost after discount?

Tip:

When calculating percentage discounts, remember you are paying the remaining percentage (e.g., 80% for a 20% discount).