Answer:
here's what I got from wikipedia (i dont like taking of other's brain skills :/ ) 
Step-by-step explanation:
<em>1:12 scale is a traditional scale (ratio) for models and miniatures, in which 12 units (such as inches or centimeters) on the original is represented by one unit on the model. Depending on application, the scale is also called one-inch scale (since 1 inch equals 1 foot)</em>
<em>hope this helps you :)</em>
 
        
                    
             
        
        
        
Answer: 48 stard
Step-by-step explanation:
12 stars = 30 balloons
? = 120 balloons
Solve
120/30 x 12 = 48
 
        
                    
             
        
        
        
Answer:

Step-by-step explanation:
 We have been given the equation 

 and we are asked to apply the square root property of equality to our given a equation and isolate the variable
First, take the square root of both sides of our equation





<em>THEREFORE, THERE ARE TWO SOLUTIONS FOR OUR GIVEN EQUATION</em>
<em> </em>
</em>
<u><em>PLEASE</em><em> </em><em>MAKR</em><em> </em><em>ME</em><em> </em><em>BRAINLIEST</em><em> </em><em>IF</em><em> </em><em>YOU</em><em> </em><em>ARE</em><em> </em><em>HAPPY</em><em> </em><em>WITH</em><em> </em><em>THE</em><em> </em><em>ANSWER</em></u>
 
        
             
        
        
        
This is the answers from MathPapa
 
        
        
        
Answer:
D 40,000nm 
Step-by-step explanation: 1nm/10^-9m * 10^-6/1um = 10^3 nm/um 
Therefore in 40 microns there are:
40um * 10^3 nm/um = 40 * 10^3 nm = 40,000 nm