Answer:
18 centimeters
Step-by-step explanation: 
Divide the circumference by π, or 3.14 for an estimation. The result is the circle's diameter.
Divide the diameter by 2.
There you go, you found the circle's radius
 
        
             
        
        
        
Answer:
We need to subtract both equations. 2x3+30x-130-2x3+3x+520
that gives 
30x-130+3x + 520
33x+390
D is answer
 
        
                    
             
        
        
        
Answer:
skewed to the left
Step-by-step explanation:
when you look at the graph, you look for where the peaks are. if the peak is not centered, it is skewed. in this case, it leans towards the left. hope this helps :)
 
        
             
        
        
        
Answer:
7.07 (3 significant figures)
Step-by-step explanation:
the distance between the two points on the x axis is 5 and the distance between the two point son the y axis is 5. thus by using pythagerous theorem you are able to get the hypotenuse which is the distance between the two points which in this case is 7.07 when rounded to 3 significant figures. not sure if im correct but i hope it helps