I got 27.5 for the mean
mean: you add up all the #'s and divide them my their quantity( in other words by how many numbers there are)
In your case you have 8 numbers, you add them and divide them by 8!
Hope it helps ;)
Answer:
Orange and pink, I'm not too sure
7
When you do 27 times x squared times z all over -3, then times that by x squared times z to the sixth power, you get -9x^4z^7
