I believe if I did this correctly, it should be 4 2/7, hope this helps!
Answer:
The explicit formula

The recursive formula
for 
if 
Step-by-step explanation:
If a sequence is arithmetical then the difference between any of its consecutive terms will be constant
3, 3.25, 3.5, 3.75,

The difference between the consecutive terms remains constant so the sequence is arithmetic.
The explicit formula for an arithmetic sequence is:

Where d is the constant difference between the terms.

is the first term of the sequence.

So

Finally, the recursive formula is:

Answer:
The one you are or were about to pick is correct.
Step-by-step explanation:
Answer:

Step-by-step explanation:
Hmmm. 20 or 30 so the teacher will count the rest,if a student guessed, wrong or right