Work out the size of angle x

If g^-1(x) is the inverse of g (x) which statement must be true

Luke started a weight-loss program. the first week, he lost x pounds. the second week, he lost pounds less than times the pounds he lost the first week. the third week, he lost 1 pound more than of the pounds he lost the first week. liam started a weight-loss program when luke did. the first week, he lost 1 pound less than times the pounds luke lost the first week. the second week, he lost 4 pounds less than times the pounds luke lost the first week. the third week, he lost pound more than times the pounds luke lost the first week.

Of the 189 miles of beaches at ocean side, 7% are privately owned 39% are owned by resorts, and 54% are public beaches. how many miles of beach are not public?