404,991
PEMDAS
Multiplication comes before subtraction
900x450=405,000
405,000-9=404,991
        
                    
             
        
        
        
Answer:
8
Step-by-step explanation:
1 2 3 4 5 6 7 8 quick math
 
        
             
        
        
        
Answer:
1. 167.55
2. 10.77
Step-by-step explanation:
For #1 use the formula for volume of cone:  , and for #2 use the Pythagorean Theorem:
, and for #2 use the Pythagorean Theorem: 
 
        
             
        
        
        
Adam made an error of 400 meters
Explanation:
Since, submarine traveling 200 meters below the surface of the ocean
and when the depth increases by 45 meters then submarine new location is
 meters below from the surface of ocean.
 meters below from the surface of ocean.
But Adam says that new location is at -155 meters.
So, error is,    meters
 meters 
Learn more:
https://brainly.in/question/13000874
 
        
             
        
        
        
If there is a picture could you please add it to your question? 
It will help me find the correct anwser faster for you!