12 this is because my number for sports is 12 and i just need to answer a ? for point thanks have a good day
        
             
        
        
        
Answer:
D
Step-by-step explanation:
 
        
                    
             
        
        
        
We can create two points.
30 feet below the surface of the water 10 seconds after he entered the water
100 feet below the surface after 40 seconds
So we have (10, 30) and (40, 100)
Plug this values into the slope formula:
m = y2-y1/x2-x1
m = (100 - 30)/(40 - 10)
m = 70/30
m = 2 1/3
        
             
        
        
        
You dont there is no way to. You just say 70x114=7980
        
                    
             
        
        
        
Answer:
-5
Step-by-step explanation:
The slope is the coefficient of x in this case. That means that the answer is -5.