Pictures are the easiest way to visualize adjacent and verticle angles. Below are two links which illistrate the concepts.
http://www.mathsisfun.com/geometry/adjacent-angles.html
http://www.mathsisfun.com/definitions/vertical-angles.html

It depends on the calculator you are using. Some calculators simply use the division sign button (either ÷ or / ). Some calculators have a button that says a
b/c.
If you have an a b/c button you usually have to press it between each number in the fraction. For example...

No, it is not always a decimal. For example 3 is a factor of 9. If you have 3 in both the numerator and denominator the expression is equal to 1.0 which is a whole number, not a decimal number. A second example would be taking the factor 1 which could
again equal 1.0 (when you...

There are quicker ways to solve this problem than the method I will show you, but I think doing it the long hand way will help you understand it better. The distribution given says that 10% of the time the random variable x is 4, 30% of the time x is 5,
etc. Since the smallest percentage in the...

To determine the multiple of a number multiple that number by 1, 2, 3, 4, etc. For example, the multiples of 5 are: 5, 10, 15, 20, 25, 30, 35, 40, etc. (5 x 1 = 5, 5 x 2 = 10, 5 x 3 = 15 and so on).
The multiples of 10 are: 10, 20, 30, 40, etc.
To find the common multiples of...

I think in this context the division expression referred to is any number divided by any other number. For example take the expression 30 divided by 6 which can be written as 30/6. In its simplest form it is equal to 5. However it could also be expressed
as 15 divided by 3 (also written as 15/3)...