Need help rn u get 40 points

Identify a1 and r for the geometric sequence an= -256(-1/4) n-1

Jenny earned a 77 on her most recent test jenny score is no less then 5 points greater then 4/5 of terrance’s score if t represents terrance score which inequality represents the situation

Acd that is originally priced at $15.85 red-tagged for the sale. what is the sale price of the cd