You can check your answer to a division question in which there is a remainder by rounding the the number either up or down depending on the remainder and then just times the quotion to the divisor and you should get close to the exact answer i think
D I believe I hope this helps :)
Answer:
The nth term is: 
a40 = 10
Step-by-step explanation:
Arithmetic sequence:
In an arithmetic sequence, the difference between consecutive terms is always the same, and this difference is called common difference.
The nth term of a sequence is given by:

In which
is the first term and d is the common difference.
1/4,1/2
This means that:

1/4
This means that 
The nth term is:


Then find a40.

So
a40 = 10
3.14159265358979323846264338327950288419716939937510582097494459230781640628620899862803482534211706798214808651328230664709384460955058223172535940812848111745028410270193852110555964462294895493038196