Answer:
Step-by-step explanation:
 
        
             
        
        
        
Answer:b
Step-by-step explanation:
 
        
                    
             
        
        
        
Answer:
4
Step-by-step explanation:
45.2 x 0.035=1.582
"Significant figures are the number of digits in a value, often a measurement, that contribute to the degree of accuracy of the value. We start counting significant figures at the first non-zero digit."  -Khan Academy. org > significant figures
 
        
             
        
        
        
You would need too do 5*5=25 if you did 5*7=35 that would be wrong
        
             
        
        
        
Answer: 
19/20
Step-by-step explanation:
I got help on khan acadamy!!!!!