Final answer:
The formula for the nth term of the given sequence is a_n = a_n-1 * 0.6.
Step-by-step explanation:
The given sequence is 300, 180, 108... To find the formula for the nth term of this sequence, we can notice that each term is obtained by multiplying the previous term by 0.6.
So, the formula for the nth term of the sequence is given by:
an = an-1 * 0.6