This is Algebra, I prefer this to be answered very quickly, but accurate. I appreciate this a lot. Thanks In Advance.

1.Find the 25th term of the arithmetic sequence 7, 4, 1, 2, ...

2.In an arithmetic sequence, ifa₄=18anda₁₀= 30,determinea₁, d,anda_n.

Then write the first four terms of the sequence.

3.In a geometric sequence, ifa₃= 5anda₆= 40, determinea₁, r, anda_n.

Then write the first three terms of the sequence.