C2065 Undeclared Identifier Error

I can't seem to figure out why I am get the error 2065: Undeclared identifier for 'PowerValue' and C2143:Syntax Error : Missing ';' before 'type' on line 13.

Code:

---

#include <stdio.h>
#include <stdlib.h>


void main ()
{
        int NumbertoMultiply;
        int X; /*Answer after the number get multiplies a number by a factor 2 to the power n*/
        printf("Please enter the number to multiply: ");
        scanf_s("%d",NumbertoMultiply);


        int PowerValue;
        printf("Please enter the number for the power: ");
        scanf_s("%d",PowerValue);


        X = (NumbertoMultiply << PowerValue);


        printf("Here is the value of X which was multiplied by your given number by a factor 2 to the power: %d",X);
       


}

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Assuming this is C and not C++, all of your variables need to be declared at the start of the function, so move int PowerValue; before or after the int X; .

So I moved the int Powervalue; before int X;. I am getting new warnings i.e. C4700: Uninitialzied local variable 'PowerValue' Used and also get same error for 'NumbertoMultiply'

That is because you forgot to pass a pointer to scanf_s on both occasions.

Thank you! Laserlight:)