Answer:
[tex]A(55) = - 201[/tex]
Step-by-step explanation:
[tex]A(n) = 15 - 4(n - 1)[/tex]
Since we are finding the 55th term, n = 5 .
Substitute this value into the above formula
That's
[tex]A(55) = 15 - 4(55 - 1) \\ = 15 - 4(54) \\ = 15 - 216[/tex]
We have the final answer as
[tex]A(55) = - 201[/tex]
Hope this helps you
