interest

A  =  amt owed

P = amt borrowed

r = interest rate as  a decimal  =  .10

n  =  number of compoundings  per year =  1

t =  number of years

So

A = 1000  ( 1 + .10  /1)^(1 * t)       simplify

A  = 1000  ( 1.10) ^t

The  amt owed depends  upon  t   ( the number of years borrowed....this isn't specified in  the problem)