Natural, Whole, and a rational number
        
             
        
        
        
Answer:
4/15 or in decimal form its 0.26
Step-by-step explanation:
 
        
                    
             
        
        
        
1/2, 6/12, 9,/18, and 15/30
        
             
        
        
        
Answer:

And if we convert this into mm we got:

Step-by-step explanation:
For this case we have the following info givenL
 represent the wavelength
 represent the wavelength
 represent the width of the single slit
 represent the width of the single slit
 represent the longitude
 represent the longitude
And we want to find the maximum width of the central maximum in mm, so we can use the following formula:

And if we solve for w the width we got:

And replacing we got:

And if we convert this into mm we got:

 
        
             
        
        
        
Answer:
s > 42 
Step-by-step explanation: INCOMPLETE QUESTION, PROBLEM STATEMENT DOES NOT GIVE THE MODELING FUNCTION.
I´VE FOUND IN NTERNET   PROFIT
p(s) = s² + 9*s - 142
Then we have
s² + 9*s - 142 > 2000
rearrange that inequation 
s² + 9*s  - 142 > 2000      ⇒  s² + 9*s  - 2142  >  0
we complete the expression as a perfect quadratic, with the help of two number that add +9  and multiplying  - 2142
Numbers are  51 and  - 42     
then
factoring that expression as a perfect quadratic
( s + 51 )* ( s - 42 ) > 0
For what  have two solution, and we dismiss the negative value since the numbers of shirts could not be negative, we get
s - 42 > 0
s > 42  the solution