Answer:
A
Step-by-step explanation:


 
        
             
        
        
        
The value of 3ab+5b-5 is 18
        
             
        
        
        
Answer:
191
Step-by-step explanation:
The amount spent for a single text:  177/17,7=0,1
x×0,1=19,1
x=19,1/0,1
x=191
 
        
             
        
        
        
Answer:
20 dollars
Step-by-step explanation:
Difference in salary between any two hours with a 10 hour gap is 200 dollars
so for on hour it is 20$