Are you asking for the definition of circumference? because you didn’t attach a picture or give us an equation to do.
To find the mean you add all the numbers then divide by the amount of numbers there are so it would be 18+14+8+22+25+8=95 then divide 95 by 6. You get 15.8333333 the answer is A
(12x3 - 14x2 - 40x) / (2x-5)
Rewriting we have:
(2x (2x-5) (3x + 4)) / (2x-5)
We simplify similar terms:
2x * (3x + 4)
We rewrite:
6x2 + 8x
Answer:
The simplified expression is given in this case by:
6x2 + 8x