So what do you need us to do for you?
So it would be 4x (x meaning the price of each pizza) + 3 for the delivery charge. The equation is 4x + 3. That would be the price of all pizzas plus delivery charge :)
Answer:

Step-by-step explanation:
<u>Area Of Squares
</u>
The area of a square of side length B centimeters is

If we have two rows, each one containing B of those squares, then the total area is

Simplifying

Answer:
-1
Step-by-step explanation:
its just -1beacuse I did it
Answer:
$420
Step-by-step explanation:
First convert the room measurements from feet to yards to match the unit of measure of the carpet.
Room size is 12 feet by 21 feet.
3 feet = 1 yard.
12/3 = 4 yards
21/3 = 7 yards
4 yards times 7 yards = 28 square yards
28 square yards times $15 per square yards = $420.