Cosmic Perspective Fundamentals
Cosmic Perspective Fundamentals
3rd Edition
ISBN: 9780134988504
Author: Bennett, Jeffrey O., Donahue, M. (megan), SCHNEIDER, Nicholas, Voit, Mark
Publisher: Pearson,
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Chapter 7, Problem 10QQ

Choose the best answer to each of the following. Explain your reasoning.

Based on current data, planetary system appear to be (a) extremery rare. (b) present around about 70% of all stars. (c) present around at least half of all stars.

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Please help me answer part A and B
Answer the question below showing detailly each step of your working.  Solution should be clear, simple and explicit enough and must be typed with the use of a computer keyboard only!
Image is attached. Please help with all problems, I know it is not standard practice to have more the one question in a submitted wuestion, but please, just onece, set that aside and help me. I am in a re3ally though place here.
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