Answer:
exact form
11/5
decimal form 2.2
mixed number form 2 1/5
Step-by-step explanation:
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.
Answer:
Part A is 2/9 of the whole
Part B is 7/9 of the whole
Answer:
d
Step-by-step explanation:
3.5 each of them will get 3 cookies and will split the last on in half