Answer:
The answer is "The second choice".
Step-by-step explanation:

Formula:


Here, you know that 12 people answered.
Therefore :
Take the "M" for mean :


In short, you answer would be C. 3.5.Hope this helps !
Photon
Answer:
30 inches squared
Step-by-step explanation:
First, find the area of the entire frame using length times height. 9*6 is 54 inches squared. Then, find the area of the middle space the same way. 6*4 is 24 inches squared. Lastly, subtract the middle from the entire frame's area. 54-24 is 30 inches squared.
Answer:
a=d-c/b
Subtract c from both sides
a=d-c/b
divide both sides by b
Answer: 8 vertices
Step-by-step explanation: A cube has 6 square faces. Each segment formed by the intersection of 2 faces is called an edge so a cube has 12 edges. Each point formed by the intersection of 3 edges is called a vertex so a cube has 8 vertices.