Answer:
B
Step-by-step explanation:
20 x 15 is 450 and add it to the semi circle which us 88.4
Hope this helps u :D
 
        
                    
             
        
        
        
rules to find :- 1 All non zeroes number are significant
2  if zero proceeding the decimal point also work as non zero figure
3 zero are following the decimal point and proceeding the first non zero digit
4 Zero in between 2 non zero digits are also significant 
5 if 1 zero follow the decimal point 
790  :-    2 significant figures
0.0391 :-  3 significant figures ( follow 3 rule)
81.05  :- 4 significant figures  ( rule 4)
0.000001 :-   1 significant figure 
8546 :-        4 significant figures 
79.0 :-         3 significant   ( rule 5)
 
        
             
        
        
        
Answer:
D )  256
Step-by-step explanation:
The given sequence is  1,4,27, ---, 3125
This is sequence of given problem

so here missing is '4' term is 
The fourth term is 256.
 
        
             
        
        
        
Answer:
C. Multiply 3 by 18
Step-by-step explanation:
Further explanation

 
        
                    
             
        
        
        
Estimation is a way to find out the approximation of something. It is important because it kinda leads to what the correct answer is and it is needed because you can estimate how much a bill would be or you could estimate how much is the area or size of something. It's very important...