Answer:
Yes, her calculation is correct. The value of 40% of 75 is 30.
Step-by-step explanation:
The value of 40% of 75 is

The value of  of 75 is
 of 75 is

From the above calculation it is noticed that the value of 40% of 75 and  of 75 are same, therefore the calculation is correct and the  value of 40% of 75 is 30.
 of 75 are same, therefore the calculation is correct and the  value of 40% of 75 is 30.
 
        
                    
             
        
        
        
Answer:
The answer is C
Step-by-step explanation:
(180-46)/2=67
67+45=112
 
        
             
        
        
        
Answer:
x=2 : )
Step-by-step explanation:
4(3x-1)=20
12x-4=20
12x=24
x=2