An argument is invalid if and only if all the premises is true and the conclusion is false.
We can test the invalidity of the argument by assuming all the premises are true and seeing whether it is possible for the conclusion to be false. If the conclusion is possible to be false, then, the argument is invalid.
A valid argument, on the other hand, is valid if and only if it is necessary that:
1) if all of the premises are true, then the conclusion is true
2) if all of the premises are true, then the conclusion must be true
3) it is impossible that all the premises are true and the conclusion is false.
Answer: 125
Explanation: If you divide 400 by 3 you get 375, then you divide 375 by 3 and you get 125.
Answer:
The major difference between a news story and a feature story is that a news story is time-sensitive. Media outlets want to publish news stories as quickly as possible after an event occurs. Feature stories, however, are not as time-dependent and contain no urgent content.
I believe C is the answer
Hope this helps
