Question

Elmer has a collection of 300 fossils. Of these, 21% percent are fossilized snail shells.

Answer 1

300*(21/100)= 63 

Elmer has 63 fossilized snail shells.

Hope this helps~

Answer 2

Importance should be given to all the information’s already given in the question.Number of fossils that Elmer has = 300
Percentage of snail shell fossils = 21%
Then
Number of snail shell fossils that Elmer has = (21/100) * 300
                                                                       = 21 * 3
                                                                       = 63
So Elmer has 63 snail shell fossils.I hope the procedure is absolutely clear to you and the answer is also correct. Following this procedure it will be possible for you to solve such question with ease in future.