Answers by Cascabel
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Answers by Cascabel

Answers by Cascabel
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A rock sample contains 4.5g of Potassium-40 and 31.5g of its daughter isotope (Argon-40). How old is the rock sample if Potassium-40 has a half-life of 1.3 billion years?
answered Aug 19, 2018
4 votes
123k views
What is the range of the 55 and 10
answered Dec 23, 2017
1 vote
134k views
The sun is made mostly of ? helium nitrogen hydrogen argon oxygon
answered Jan 13, 2017
6 votes
158k views
On Monday, a clothing store sold 25 pairs of pants. On Tuesday, the store sold 37 pairs of pants.What was the percent of increase in number of pants sold from Monday to Tuesday? PLEASE HELP FAST!!!!
answered May 6, 2016
5 votes
15.0k views
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