Answer:
Step-by-step explanation: It's 34
 
        
                    
             
        
        
        
Answer:
120 > x
Step-by-step explanation:
multiply -4 on both sides, -30 * -4 = 120
since you multiplied by a negative you change the sign
<3
 
        
                    
             
        
        
        
I believe the equation is y = -3x + 0
        
             
        
        
        
Answer:
17.67 mpg
Step-by-step explanation:
The fuel efficiency is given by :

We need to find the fuel efficiency for a speed of 30 mph
Put the value of s equals 30 mph in the above equation.

So, the required fuel efficiency is equal to 17.67 mpg.
 
        
             
        
        
        
Answer:
So the 1st, 2nd, & 3rd graphs all show continuous data. (I'll attach an image to show which ones I'm talking about)
Explanation:
This is because with continuous data, all points need to connect and it needs to continue. The 4th graph (with just points) would be discrete. 
I hope this helps!! :)
Sorry I took so long...