B. If it is Thursday, then Sara goes to the bank.
 
        
                    
             
        
        
        
The answer is (b) y = 3x + 1
        
             
        
        
        
Answer:
12√3 is the correct answer
 
        
                    
             
        
        
        
Let the numbers be x and y.  Then xy = -30 and  x+y = -3.
Solve xy = -30 for y:    y = -30/x
subst. -30/x for y in   x+y= -3:     x  -  30/x = -3
Multiply all 3 terms by x:  x^2 - 30 = -3x, so   x^2 + 3x - 10 = 0
Solve this quadratic equation for x.     x: {-5, 2}
If x = -5, then   x+y = -3 becomes -5 + y = -3, and y = 2.
You should check to determine whether x=2 is also correct.  If it is, what is the corresponding y value?
        
             
        
        
        
You need to give more info so like show more of the question