#4. Hello I am having issues with this particular math problem and would like assistance in figuring out how to solve it.

In an arithmetic sequence, the nth term an is given by the formula an = a1 + {n 1)i::|l where a1 is therst term and d is the common difference. Similarly. in a geometric sequence. the nth term is given by an = a1 - r" - 1 . Here ris the common ratio. Use these furmulas I!) determine the indicated term in the given sequence. The 27th term of 20, 49. 78. ml... The 27m term of the sequence is . (Simplify your answer.)