I believe that they typo meant 300 fossils of which 21% are snail shells.
Since % means per one hundred...
300(21/100)=63
Elmer has 63 fossilized snail shells.
        
             
        
        
        
Answer:
Which graph's shaded region represents the possible combinations of coffee and tea for this order?
  
        
                    
             
        
        
        
Answer:
<h2>
The interest ethan will pay is $164.25</h2>
Step-by-step explanation:
To calculate the interest paid by ethan on the borrowed bike using the formula.
Simple Interest = Principal * rate * time/100
Principal =  $2,190, rate = 2.5%, time = 3years
On substitution
SI = 

The interest ethan will pay is $164.25