.125 Iknow this as a fact ._.
N is the variable I believe.
Answer:
![a_{200}=418](https://tex.z-dn.net/?f=a_%7B200%7D%3D418)
Step-by-step explanation:
The explicit formula for an arithmetic sequence is given by :
...(1)
We need to find the 200th term of the sequence.
Put n = 200 in equation (1)
![a_{200}=20+(200-1)2\\\\=20+199\times 2\\\\=418](https://tex.z-dn.net/?f=a_%7B200%7D%3D20%2B%28200-1%292%5C%5C%5C%5C%3D20%2B199%5Ctimes%202%5C%5C%5C%5C%3D418)
So, the 200th term of the sequence is 418.