In mathematics multiplying decimals is just like multiplying a whole number and ignoring the decimals., then just put the decimals in the answer – it is how many decimals does the two numbers combined.
First step:
Line the numbers on the right and do not a line the decimal points
      26.2
×  16.43
Second Step:
Multiply the numbers starting on the right, just like multiplying a whole number and ignore the decimals.
       26.2
<span> ×  16.43</span>
         786
     1048
   1572
<span>+ 262   </span>
   430466
Third step: add the products
        26.2
<span> ×  16.43</span>
         786
     1048
   1572
<span>+ 262   </span>
   430.466 is the mathematician’s answer.
 
        
             
        
        
        
When you round; you round down if the number in the selected column is below 5 and you round up if the number is 5 and above.  
Thus; if you apply this to your question: 
784,072 then round up and you get 790,000 
 
        
             
        
        
        
6 4/5 = 6.8
4 1/2 = 4.5
6.8-4.5= 2.3
Answer: 2 3/10 more pounds of treasure
        
             
        
        
        
Answer:
44
Step-by-step explanation:
mean = (13+15+12+16+14+X)/6 = 19
70+X=19×6
X=114-70=44