Answer: 46 yds².
Step-by-step explanation:
Find the area of all surfaces & add them up:
(5 · 3) + (5 · 3) + (1 · 3) + (1 · 3) + (1 · 5) + (1 · 5) = 15 + 15 + 3 + 3 + 5 + 5
= 30 + 6 + 10 = 36 + 10 = 46 square 
 
        
                    
             
        
        
        
Peter paid 0.85 tax which is at 7.1% sales tax
        
             
        
        
        
First we multiply the numbers ignoring the decimal and then place the decimal in the position
3.04 *7.091 = 2155664
Now the first number has two digits after the decimal and the second number has three digits after the decimal.
Therefore in the final result we have to move the decimal (2+3) =5 place from the left, 
So the answer would be 21.55664
So, the correct answer is 21.55664
Jerry calculated the answer correctly , but made an error in the placement of the decimal point.  The answer is not reasonable because 2.155664 and 21.55664 mean two completely different answer far apart from each other
 
        
             
        
        
        
Not sure what your asking but:
0.000675 is equivalent to 6.75x10^-4
hope this helps