4x+3(5y-x) 
Start by multiplying out the brackets 
4x+15y-3x
Collect like terms 
4x-3x+15y
Subtract the x's
X+15y
Hope this helps!
        
                    
             
        
        
        
Answer: the answer is 64 1/3
Step-by-step explanation:
 
        
                    
             
        
        
        
Answer:
5/12
Step-by-step explanation:
1/4 + 1/6 = (6+4)/24 = 10/24 = 5/12
why +1/6?
because: - (-) = +
 
        
             
        
        
        
Answer:

Step-by-step explanation:
apply the inverse properties of logarithmic and exponential functions to simplify  

Inverse property of log says that

we apply this property in our problem. ln has same base 'e' . so ln and e gets cancelled




 
        
             
        
        
        
Answer:
Third option:  and
 and 
Step-by-step explanation:
Given:

For a modulus function, if  , then,
, then,

Here,  ,
, 
∴ 
Therefore, the third option is the correct answer as the graph has  values as -2 and 2
 values as -2 and 2