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10^-3 would make a decimal, so would 10^-1. 
10^1 would be 30 miles, 10^3 would be 3 with 3 zeros ( 3000 miles) which would be most accurate
        
             
        
        
        
The answer is 3.3. and represents a decimal and tenths is the place value right after the decimal
        
             
        
        
        
Answer:
20 and 40
Step-by-step explanation:
20 doubled is 40 
The difference is 20 
Hope this helps! :)
 
        
                    
             
        
        
        
Answer:
Combine like terms4ℎ+3ℎ+ℎ8ℎ
Solution8ℎ
Step-by-step explanation: