Trying to understand where each thing is at on the geometric series/sequence. where would i find a1, r, and n on these and what would be the sum of the last one? is there any calculator i can look up to me with this you!

Graham’s monthly bank statement showed the following deposits and withdrawals. -$25.20, $42.75, -$22.04, -$18.50, $74.11. part a if grahams baldness in the account was $37.86 at the beginning of the month,! 27/4! 2// the account balance at the end of the month? ? plz i will give you 100 points