Answer:

Explanation:
Each term in this sequence gets multiplied by -1/5, to get the subsequent term.
Thus, this sequence is a geometric sequence/progression.
⭐What is the formula for a geometric sequence?

is the first term of the sequence
is the common ratio (the number each term gets multiplied by)
is the term number you want to find
To find the formula for this sequence, substitute the given values into the sequence equation.
= 25
= -1/5
∴ The formula is:
