Answer: You divide the top row by itself and you multiply the top by 2 each time.
Step-by-step explanation: Multiply 72 by 2 each time on top and the bottom row just simply add 1.
Sorry if it is wrong but i hope it helps!
Answer:
whats the question? its a little blurry and hard to see
Step-by-step explanation:
Since it's an estimate, probably 103<span />
Each term differs by -68 and the first term is -68, we have:

As an expession it's just -68n.
It is C. r=6
3 * 6 = 18 + 2 =20