The first one
the first 2 numbers gives a power of 1 then the second gives you 1-4.
1+1-4 is -2 so its the first one
        
             
        
        
        
Answer:
The number is -4.
Step-by-step explanation:
Let the number be n.
Given:
Max adds 7 to a number.
hence it is given as n+7
Multiply's the sum by -4 the result is 3 times the same number.
Hence the equation can be written as;

Now Solving the above equation to find value of n we get;

The value of n is -4.
Now when we add 7 to number -4 we get answer as 3.
And when the sum is multiplied by -4 we get answer -12.
Also 3 times of number is equal to 3 multiplied by -4 we get answer as -12.
Hence when the sum is multiplied by -4  it is equal to 3 times of same number.
Hence from above we can say that the number is -4.
 
        
             
        
        
        
Answer:
1,4
Step-by-step explanation:
The anwser is 1,4
 
        
             
        
        
        
Answer:
D) 57
Step-by-step explanation:
1/3x- 1/2 = 18 1/2
1/3x = 19
(3) * 1/3x = 19 (3)
x = 57