Speed (v) could be determined using this following formula
v = distance ÷ time
plug in the numbers
v = 

v = 

v = 9/3
v = 3
The speed is 3 miles per hour
 
        
             
        
        
        
Answer:A 
Step-by-step explanation: because there is an association with the child’s hight and age so the answer is A ( plus I have did this before and got it wrong and the actual Answer was A when I picked B
 
        
                    
             
        
        
        
Answer:
the bottom
Step-by-step explanation:
 
        
                    
             
        
        
        
Answer:
The clock hand made a 90 degree turn. It is not a 3/4 fraction.
 
        
             
        
        
        
Answer:
8.
Denote the equation : y = ax + b
Use the first 2 values of x and y in table:
3a + b = 21
5a + b = 35
Subtract the 2 equations:
=> 2a = 14 => a = 7 => b = 21 - 3 x 7 = 0
=> The solution is  y = 7x
9.
Denote the equation : y = ax + b
Use the first 2 values of x and y in table:
5a + b = 17
10a + b = 22
Subtract the 2 equations:
=> 5a = 5 => a = 1 => b = 17 - 5 x 1 = 17 - 5 = 12
=> The solution is  y = x + 12
Hope this helps!
:)