Aflat screen tv weigh 147 newtons. the mass of the tv is ? kilograms

Wherever the TV happens to be, its weight is
               (mass) · (acceleration of gravity in that place) .
There are small differences, but the acceleration of gravity anywhere on Earth is always close to 9.8 m/s².  So if the TV is anywhere on Earth, we can write
                                   147 N = (mass) · (9.8 m/s²)
Divide each sideby   9.8 m/s² :            Mass = (147 N) / (9.8 m/s²)
                                             =  (147/9.8) kg
                                             =    15 kg .
Not my answer. I got the answer from AL2006 but it is the correct one