Answer:
2(b-2)=6
Step-by-step explanation:
Twice the difference means multiply the difference by two
It explains the difference being between the unknown number(b) and 2
The answer is said to be six
So you put the difference (b-2) 
Multiply it 2(b-2)
and finally, add the answer: 2(b-2)=6
 
        
             
        
        
        
Use distributive property
5(4x + 3) - 2x
20x + 15 - 2x
Simplify by liked terms
18x + 15
The solution is A
        
             
        
        
        
The answer is 3.06   
0.34
x     9
_________
3.06                              Just multiply 0.34*9=3.06  then count two places left to  place the  decimal point in the proper place
 
        
                    
             
        
        
        
Answer:
Some part of the question is missing , you are requested to kindly recheck it once. There must be some time provided in the problem
Step-by-step explanation: