Answer:
 Number of Significant Figures: 5
The Significant Figures are 3 2 5 5 4
 
        
             
        
        
        
Answer:
7.5
Step-by-step explanation:
It is longer than 5, so cross 2.5 and 5 out, 10 is too big, so 7.5 is the correct answer
 
        
             
        
        
        
Answer:
There are equal ratios
Step-by-step explanation:
100/25=4 and 15x4 is 60
100/20=5 and 12x5 is also 60
 
        
                    
             
        
        
        
Answer:
321
Step-by-step explanation:
#/68&$#57:'#46&"¥<>`《\_£=%~《|
 
        
             
        
        
        
The numbers DO differ by 10 if they are
- 1 and 11
- 2 and 12
- 3 and 13
- 4 and 14
- 5 and 15
Each outcome technically has two ways of occurring, but since we're taking two marbles at a time, that would be the same as saying, for instance, that drawing 1 and 11 is the same as drawing 11 and 1. We only count such an event once.
So the answer is (a) 5.