Answer:
a = 25 , b = 14
Step-by-step explanation:
For A
a/5 + 3 = 8
a/5 = 8 - 3
a/5 = 5
Cross multiply 
a = 5 * 5
a = 25
For B
3b/7 - 1 = 5
3b/7 = 5 + 1
3b/7 = 6
Cross multiply 
3b = 42
b = 42 / 3
b = 14
Hope it will help 
 
        
             
        
        
        
Answer:
Studying probability and statistics will allow you to see the world from an entirely different perspective, since the subjects will give you the tools to model and analyze situations, which involve uncertainty.
 
        
             
        
        
        
Answer:
B
Step-by-step explanation:

Radius= diameter ÷2
r= 32 ÷2
r= 16

Substitute r= 16,


Divide the denominator and numerator by 128:

Thus, the answer is B.