Answer:
Warm salt water has some quality of disinfectant. Some researchers shows that rinsing mouth from warm salt water can give relief from the inflamed gums caused by gingivitis.
It helps in rinsing the bacteria out of the mouth which can cause gum swelling and sore throat. It is also seen that warm salt water helps in killing some bacteria and do not allow pathogenic bacteria to accumulate in gums.
This is the reason why high salt concentration is used in pickles because it acts as a bactericidal agent
 
        
             
        
        
        
Answer:
I know. It's to disagree with everything they say and let your dad go get the milk
 
        
                    
             
        
        
        
Should call 911 then give them an aspirin
        
             
        
        
        
Answer:
Probability of tractor do not start = 7.67%
Explanation:
Given data:
Probability of not start at red = 6%
Probability of not start at white = 11%
Probability of not start at Blue = 8%
Percentage of  tractors produced in red line = 48%
Percentage of  tractors produced in white line = 31%
hence Percentage of  tractors produced in white line = 1 - 0.48 - 0.31 = 0.21
Probability of tractor do not start 
Probability of tractor do not start = 0.0288 + 0.0231 + 0.0248 = 0.0767
Probability of tractor do not start = 7.67%