Answer:
Rotation 180° counterclockwise about the origin
Okay it might not be right but I say B
Answer:
In point number 3 the angles shown are alternate angles and in point number 4 it is saying that the lines PQ and SR are equal. In point 5 it is saying that the two triangles SRT and QPT are equal because of A. A. S. axiom from statement 3 and 4.
Answer:

Step-by-step explanation:
Given : 
To Find : What are the factors of 
Solution:

Since 100 =

using property : 

Thus the factors of
are (x+10) and (x-10)
In order to obtain a standard deviation of 0, all members of the data set should be equal.
This means that each of the 100 members in the data set is equal to 50 (the mean value).
Answer:
The smallest observation in the set is 50.