Answer:
First 3 are functions . Last one is not a function
Step-by-step explanation:
They are all functions except the last one. 
The last one is not a function because  it has duplicate  x- values  in the ordered pairs (1, -1) and (1, -6). There are 2 outputs for one input so its a relation but not a function 
 
        
                    
             
        
        
        
Answer:
<u>364 cm²</u>
Step-by-step explanation:
Area of the figure :
- Area (triangle) + Area (rectangle 1) + Area (rectangle 2) + Area (rectangle 3)
 - 1/2 x 20 x 14 + 12 x 9 + 7 x 3 + 19 x 5
 - 140 + 108 + 21 + 95
 - 248 + 21 + 95
 - 269 + 95
 - <u>364 cm²</u>
 
 
        
                    
             
        
        
        
Answer:
The correct answer is 64
Step-by-step explanation:
we know that,
volume =4x
 =4×4×4
 =64
 
        
                    
             
        
        
        
Answer:
35%
Step-by-step explanation:
 
        
                    
             
        
        
        
Answer: whichever one is easiest to get by itself. 
Step-by-step explanation: