it will be 31,995 but we have to estimate yo the nearest cent so 10 cents
 
        
                    
             
        
        
        
 $420+$144=$564
then you divide $564 by 6 which is...
$94 is how much each person payed
        
             
        
        
        
The amount of substance left of a radioactive element of half life, 

 after a time, t, is given by:

Given that <span>potassium-40 has a half life of approximately 1.25 billion
years. 
The number of years it will take for 0.1% of potassium-40 to remain is obtained as follows:

Therefore, </span><span>the maximum age of a fossil that we could date using 40k is 
12.5 billion years.</span>
 
        
        
        
Answer:

Step-by-step explanation:
we know that
To find the conjugate complex of a complex number, simply change the sign of the imaginary part of the complex number
In this problem we have

so
the complex conjugate is equal to

 
        
                    
             
        
        
        
Linear mathematical models describe real world applications with the use lines. For instance, a car going 50 mph, has traveled a distance represented by y=50x, where x is time in hours and y is miles.  The equation and graph can be used to make predictions.