Neptune is an average distance of 4.5 × 10^9 km from the sun. estimate the length of the neptunian year using the fact that the earth is 1.50 × 10^8 km from the sun on average.

164.32 earth year

Step-by-step explanation:

distance of Neptune, Rn = 4.5 x 10^9 km

distance of earth, Re = 1.5 x 10^8 km

time period of earth, Te = 1 year

let the time period of Neptune is Tn.

According to the Kepler's third law

T² ∝ R³

Tn = 164.32 earth years

Thus, the neptune year is equal to 164.32 earth year.

Step-by-step explanation:

x=half

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no solution.