7.86 x 4 is 36.156 because you have to line up the decimals and multiply them and then you get 36.156
        
             
        
        
        
Answer: 8n-4
Step-by-step explanation: Should be the answer youre looking for
 
        
                    
             
        
        
        
51.65 to the nearest whole number
After the whole number 51, the next digit is 6, and since this is more than 5. So we round up the 51 to 52.
51.65 ≈ 52  to the nearest whole number.
        
                    
             
        
        
        
Answer:
20600000000
Step-by-step explanation:
Move the decimal over 10 times