Solution. Models are being used as a simplified representation of an object, idea, or an event that is too complex, too small, or too big to study. Scientists use models in order to show how a certain phenomenon occurs and to answer the questions regarding it.
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It is D it does not have a characteristic of sovereign
A^2 + b^2 = c^2
18^2 + 9^2 =
324 + 81 = c^2
405 = c^2
take the sq root
= around 21.12
The outer plantes are Jupiter,Saturn,Uranus, or Neptune
