If productCost and productPrice are numeric variables, and productName is a string variable, which of the following statements are valid assignments? If a statement is not valid, explain why not....

If productCost and productPrice are numeric variables, and productName is a string variable, which of the following statements are valid assignments? If a statement is not valid, explain why not.

1. 
   

   productCost = 100

   
   


2. 
   

   productPrice = productCost

   
   


3. 
   

   productPrice = productName

   
   


4. 
   

   productPrice = "24.95"

   
   


5. 
   

   15.67 = productCost

   
   


6. 
   

   productCost = $1,345.52

   
   


7. 
   

   productCost = productPrice - 10

   
   


8. 
   

   productName = "mouse pad"

   
   


9. 
   

   productCost + 20 = productPrice

   
   


10. 
    

    productName = 3-inch nails

    
    


11. 
    

    productName = 43

    
    


12. 
    

    productName = "44"

    
    


13. 
    

    "99" = productName

    
    


14. 
    

    productName = brush

    
    


15. 
    

    battery = productName

    
    


16. 
    

    productPrice = productPrice

    
    


17. 
    

    productName = productCost