Find 5th term of g. P squad of 4375 am 2second term 35

Answer 1

Aside from working with a GP, I have no idea what all the other gibberish means.

ar = 35

P squad ? no idea.

But the 5th term is ar^4 = (ar)r^3 = 35r^3.

Maybe you can either post something intelligible, or finish it off from here.