Answer:
✔️saves time spent manually creating multiple tasks
Explanation:
I did it on edge
 
        
                    
             
        
        
        
Answer:
200 nm
Explanation:
We need a constructive interference to see the bright reflection
we know that 
  where m=1 and 
 is the wavelength of the gasoline 
so 
putting the value of m and 
 in thickness equation 

so the thickness of the film will be 200 nm
 
        
             
        
        
        
HTML: Hyper Text Markup Language.
HTML is the markup language used for defining the structure, and very basics of a web page - one wouldn't be possible without this language!
HTML is combined with CSS (Cascading Style Sheet) to improve visuals, and combined with a language such as Javascript to add functionality and interaction with the web page.
        
             
        
        
        
In excel spreadsheets, you need to consider specifying relationships between the information you have
stored in your spreadsheets when creating formulas. The elements that will help
you understand using spreadsheet are the constants, operators, references and
functions. This will enable you to use the formulas, without hassle in
spreadsheets.