6 x 5 = 30
4 x 4 = 16
30 + 16 = 46
There are 46 DVDs in total.
I'll give a practice problem to help explain it a bit better.
Here, let's try to solve 45% of of 60.
First, we convert the percentage into a decimal. To turn any percentage into a decimal you move the point two spaces to the left.
That means 45% as a decimal is .45.
Next, we multiply our number, 60, by the decimal .45.
60×.45=27.
That means 45% of 60 is 27.
To sum it all up, you have to get the percentage, move the decimal point two spaces to the left, and multiply it by the number you were trying to find the percentage of.
Have a wonderful day! :)
Answer: Third option
Step-by-step explanation:
For this exercise it is important to remember the following:
1. By definition, the Associative property of addition states that it does not matter how you grouped the numbers, you will always obtained the same sum.
2. The rule for the Associative property of addition is the following (given three numbers "a", "b" and "c"):

Knowing the information shown before, you can identify in the picture attached that the option that illustrates the Associative property of addition is the third one. This is:

As you can notice that you will always get the same result:

Answer:
16. -197 < -110
17. 167 > -65
18. Mercury, Earth, Mars, Jupiter, Uranus, Neptune
Step-by-step explanation:
It can help to plot these temperatures on a number line. The ones farther to the left are less than ones to their right.
__
16. -197 < -110 . . . Uranus < Jupiter
__
17. 167 > -65 . . . Mercury > Mars
__
18. Reading the graph from right to left, the order greatest to least is ...
Mercury, Earth, Mars, Jupiter, Uranus, Neptune
Not surprisingly, this is the order of these planets outward from the sun.