Write an explicit formula for a, start subscript, n, end subscripta

Question

n
​
, the n, start superscript, th, end superscriptn
th
term of the sequence 25, comma, 20, comma, 15, comma, point, point, .25,20,15,....
Answer
Attempt 1 out of 2

a, start subscript, n, end subscript, equalsa
n
​
=

Answer 1

25 - (n-1)*5