The height of the cone is 8.59
        
                    
             
        
        
        
Hello there,
If you are putting 28 on the less than side it is.
Correct 
30>28
Incorrect
28>30
Hope this helped!
        
                    
             
        
        
        
Answer:
12.058
Step-by-step explanation:
 You steal one "count" from the 8, and move it to the 7 so you have 12.0587, instead of 12.0578. Then, you are able to take off the 7 from the back. 
 
        
                    
             
        
        
        
1. 0 - 34 + 13 - 5 = -26.....26 ft below the surface
2. y = 15x + 50
    220 = 15x + 50
    220 - 50 = 15x
    170 = 15x
    170/15 = x
    11 1/3 = x......he worked 11 1/3 hrs.......not sure about this...because it does not specify how many visits he made...but if this was just for 1 visit, then he worked 11 1/3 hrs