They ate 2/3 together. And, they have 1/3 left!
Arithmetic sequences have a common difference between consecutive terms.
Geometric sequences have a common ratio between consecutive terms.
Let's compute the differences and ratios between consecutive terms:
Differences:

Ratios:

So, as you can see, the differences between consecutive terms are constant, whereas ratios vary.
So, this is an arithmetic sequence.
I believe the answer is c
Answer:
Two lines, both in the same plane, that never intersect are called parallel lines. Parallel lines remain the same distance apart at all times.
Step-by-step explanation:
parallel lines.
Answer:
answer is option D (56)
Step-by-step explanation:
7×8 = 56