Answer:
CPU
I dont know a whole ton about computers. But I'm confident this is correct. Without the CPU the other options on this list wouldnt work so the CPU would be the "heart".
Input
Mask
By providing input masks, you are able to help people enter
data correctly for fields that contain data that is formatted in a particular
way. Basically, input masks give you great control over what is entered. In
simple terms, it restricts how one enters data into the database.
Responsibility, liability, answerability
Answer:
18
Explanation:
If you take the formula, and you substitute the values of the variables, it will be:
10 * 2 - 10 / 5
Then if you remember the order of math operations, it will be:
(10 * 2) - (10 / 5)
Which reduces to:
20 - 2 = 18