Question

good evening! Can someone please answer this, ill give you brainliest and your earning 50 points. Would be very appreciated.

Answer 1

See off side word is used it will be deducted half each time n is used

So we get a geometric sequence.

So correct formula is

$\\ \rm\longmapsto f(n)=128(1/2)^n,n>1$

Option A is correct