The correct answer is B. So for A, 8m is smaller than 12 m. For B, 20 m is Bigger. For C, Find how many meters is 1 centimeter, the answer is 1 cm : 12m, the meter is not bigger than 12, but the same, so C is wrong. For D, divide both sides by 3 to find 1 CM, the answer is 1 cm : 5 m, it is wrong.
        
             
        
        
        
The answer to your question is C.
        
             
        
        
        
Answer:
$3.68 underbudget
Step-by-step explanation:

Hope this helped!
 
        
             
        
        
        
 +
 +  =
 = 
Explanation:
1/2 + 1/4 = ?
( 1/2 x 2/2 ) + ( 1/4 x 1/2 ) = 
2/4 + 1/4 = 
2 + 1 / 4 = 3/4
so, 1/2 + 1/4 = 3/4 
 
        
                    
             
        
        
        
This is a geometric sequence which represent exponential decay.  For any sequence, if r^2, the common ratio squared, is less than one, it is exponential decay, or:
f=ir^t
If r^2<1, it is exponential decay.  In this case r=2/3, so it is exponential decay.