They believe it doesn't, because it doesn't to any measurable extent.
The reverse is not true: Neptune has a very, very strong effect on Pluto's orbit. In fact, Pluto completes almost exactly three orbits for every two of Neptune's, and this is not a coincidence; such stable resonances are common.
Pluto's orbit remains inside Neptune's orbit for about 20 years out of its 248-year orbital period. This phenomenon occurs due to the unique orbital characteristics of Pluto and Neptune.
plutos core kills us from coldness
Yes. Charon, Plutos largest moon, is about 1200km in diameter, while Plutos diameter is around 2322km, so Plutos diameter is about twice the size. In terms of volume though, Pluto is around 7.4 times as big.
Monkeys
it rotates to the right
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meh
2.03g/cm3
1,134 km
Yes it is
Pluto has no atmosphere
no its icy and cold