Answer:
concentration
Step-by-step explanation:
Because concentration is a factor to how much of a volume to give
 
        
             
        
        
        
Answer:
The  height of the building is 
Step-by-step explanation:
see the attached figure to better understand the problem
we know that
In the right triangle ABC

we have

substitute and solve for BC


Find the height of the building
The  height of the building (h) is equal to 

 
        
             
        
        
        
Answer:
70%of x = 63
70/100 × x = 63
x=63×100/70
x=90
Step-by-step explanation:
 
        
             
        
        
        
The domain is the x value: (-3)
The range are the y values: (0, 1, 2, 3) in order from least to greatest
No this is not a function because that value of x is "reused". You can "reuse" a y value with different x values but you can't reuse an x value ever, even if the y's are different. x's cannot be the same