Answer:
2
Step-by-step explanation:
8 x 2 = 16
4 x 2 = 8
 
        
                    
             
        
        
        
3miles/ 28 minutes times 42 minutes is equal to 4.5 miles.
Therefore, Eric run 4.5 miles in 42 minutes. 
Hopefully this helps!
        
             
        
        
        
I believe it’s B . Not 100 percent sure but yeah
        
             
        
        
        
Answer:
722 cm ^2
Step-by-step explanation:
 
        
             
        
        
        
We have been that frequency (y) varies inversely with wavelength (x).
We know that two inversely proportional quantities are in form  , where a is inversely proportional to b and k is constant of variation.
, where a is inversely proportional to b and k is constant of variation.
Our required equation would be  .
.
To find frequency of blue light, we will substitute  and
 and  in our equation as:
 in our equation as:


Therefore, the frequency of blue light is 764.