Solve the mean for the data set. (4,11,25,1,17,34,11,30) A. 12
B. 14.5
C. 16.6
D. 18.9

The mean is C. 16.6

Step-by-step explanation:

the mean is the average, to find the average add all the numbers together and divide by the amount of numbers

4+11+25+1+17+34+11+30=133

133/8 = 16.6

At point E

Step-by-step explanation:

According to the question, it is mentioned that the decagon is rotated counter clockwise by 3 times

But as we can see in the attached figure that the decagon name ABCDEFGHIJ

Now if this is going to rotate 3 times in the aforementioned direction the top position of the vertex is E.

Hence, the correct answer is E.