3m-4n-8 as a sum is: 3m + (-4n) + (-8)
Writing the equation as a sum helps identify the terms of the expression because it makes the terms visibly clearer to make out, so it can help prevent mistakes as well. The terms are the negative (-) and the positive (+). We now have a better visual of what the term of each number is.
4.5% of 46.116 => 45/10·46.116/100
=>2.07522
Answer: class B
Explanation:
Normal distributions are bell-shaped and symmetric about the mean. So, if the data is scattered around a lot, like in Class A & B, it would not be normal.