Significant figures are the digits that carry meaning to its measurement. Significant figures includes all the numbers excluding all the leading zeros, trailing zeros. All non zero digits are significant. Zeros between the non zero digits are significant. In a decimal number, trailing zeros are significant. 
Now, consider the given number 0.23350
Since, in a decimal number all the trailing zeros are significant.
So, in the number 0.23350 there are five significant figures 2,3,4,5 and 0.
Therefore, there are 5 significant figures in the given number.
 
        
                    
             
        
        
        
Answer:
30 dollars
Step-by-step explanation:
40% of 100 = 40. 40% of 50 = 20. 50-20 = 30.
 
        
                    
             
        
        
        
10 (assuming you meant 5 TIMES 2
 
        
        
        
Answer:
<h2>Required set will be :-</h2><h3>(9,15)</h3>
 
        
                    
             
        
        
        
Y= 1x because the slope is 1 because rise over run 1