Answer:
Graphs C and D show an arithmetic sequence.
Step-by-step explanation:
Arithmetic sequences have a common difference, meaning that the gap between each term in the sequence is always the same.
In Graphs A and B, the gap between terms seems to be changing. That tells us that they aren't arithmetic. Instead, those are geometric sequences.
Meanwhile, Graphs C and D appear to be straight, meaning that the gap between the terms is constant.
If the 10 books are all different, we have:
• 10 ways of selecting the first book,
,
• 9 ways of selecting the second book,
,
• 8 ways of selecting the third book,
,
• 7 ways of selecting the fourth book.
The total number of ways to arrange 4 of the 10 books is:

Answer
There are 5040 ways of arranging the books.
Answer:
B.
Step-by-step explanation:
as for my answer please correct if im wrong
Answer:
1_11/20 pounds, or 1.55 pounds.
Step-by-step explanation:
Since at the beginning, he had 5 1/4 pounds and used 3/5, we subtract the amount of pounds. We are then left with 93/20 pounds, which he then splits among 3 containers. Dividing by three, we then get 31/20 pounds in one aquarium, or 1 11/20 pounds in each aquarium or 1.55 pounds.