I would say it's H because 4 and 3 add to be 7
        
             
        
        
        
Since there is no repetition allowed, there are 10 possibilities for the 1st digit, 9 for the 2nd, 8 for the 3rd, and 7 for the 4th. This gives a total of (10)(9)(8)(7) = 5040 four-digit codes.
For all odd digits to be used, there are 5 possibilities for the 1st digit (1,3,5,7,9), 4 for the 2nd, 3 for the 3rd, 2 for the 4th. This gives a total of (5)(4)(3)(2) = 120 codes that only use odd digits.
Therefore there are 5040 - 120 = 4920 codes that do not consist of all odd digits. The probability is 4920/5040 = 41/42.
        
                    
             
        
        
        
Answer: 3/50
Step-by-step explanation:
0.06 = 6/100 , 100 would be the denominator because we have two figures after the decimal point. Each figures can also be represented by 10, 
Again, 
0.06 = 6 × 10-²
Now 0.06 = 6/100
 = 3/50.
Therefore, the fractional form = 3/50 in its lowest term.
 
 
        
             
        
        
        
100x 0.18 as it equals 18 when you multiply it