Answer:
10,000
Step-by-step explanation:
Distribute the 9 to each term in the parentheses with multiplication.
9(3 + x) = 27 + x
But this is usually written as x + 27
The lateral area of the shape is the sum of the area of all lateral faces.
The area of the lateral face that is rectangle with sides 5 mi and 2 mi is

As you can see the shape has all four lateral faces of the same rectangular form with the same sides lengths, therefore,

Answer: correct choice is B.
The answer is 3.3 hope this helps you .Skateboards