Answer:
0.3
Step-by-step explanation:
 
        
             
        
        
        
Answer:
4.) y=x-16
Step-by-step explanation:
Here,
y=4,
x=20
Now,
putting the value of x and y.
or, 4=20-16
or, 4+16=20
∴20=20
 
        
                    
             
        
        
        
Answer:
Step-by-step explanation:
 the position of the boat on the waters surface = 0 (zero)
  Carmen and Jen's swimming depth.  = -15
 
        
             
        
        
        
1 cm            3 cm
---------   =  ---------
3 in               x inches
The ratio has to stay in the same order  cm on top, inches on the bottom
Choice C