Answer:
The answer of a is 56
Step-by-step explanation:
139 - 83 = 56
 
        
             
        
        
        
A. 1 only- this study provides evidence that taking B12 vitamin daily contributed to protecting against Alzheimer’s disease.
        
             
        
        
        
1 ) the formula used to calculate the simple interest is 
I = Ci*n,  f his formula you obtain n , that is the time in years  n = I/ Ci, where c is the initial  capital,  i is the  earned interest  , and i is he rate of interest,
 n = 120/600 (0,025) = 120 / 15 =  8 , at 8 years, you will obtain $ 120 of INTEREST 
 
        
             
        
        
        
Answer:
D
Step-by-step explanation:
B has a y-intercept of 4, greater than A's y-intercept of -4. This means that D is correct.
 
        
                    
             
        
        
        
Answer:
Picture is not clear please post a clear picture. Note brainly is meant to be <u>one</u><u> </u><u>question</u><u> </u>per post for further reference