equivalent ratio of 16:18 is 8:9
 
        
                    
             
        
        
        
Answer:
The height is 7 cm
Step-by-step explanation:
 210 × 2 = 420
 12 × 5 = 60
 420 ÷ 60 = 7
 
        
                    
             
        
        
        
Answer:
20+4(t)=?
Step-by-step explanation:
try using the vid :P
 
        
             
        
        
        
Answer :  7.5 ft
Step-by-step explanation:
when the length of the shadow is 8ft, the actual height of the man = 5ft
8:5
let the giraffe be 'x' ft tall.
if the length of the shadow is 12ft, actual height = x ft
12:x
 8:5 x 12:x
  ×
 × 
x=  
 
x=7.5 ft
Therefore, the giraffe is 7.5ft tall. 
 
        
                    
             
        
        
        
Answer: #13: Domain = (-∞,∞) Range = (-∞,0]
#14: Domain = (-∞,∞), Range = (-∞,∞)
Step-by-step explanation: The domain is all possible x values for a graph and the range is all possible y values.