Do you have answer options for this question?
        
             
        
        
        
Answer:
3x + 12
Step-by-step explanation:
 
        
             
        
        
        
A*5+b*2=145     
a    +b   =50       | * -2
5a   +2b=145
-2a  -2b = -100
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5a-2a    = 145-100
3a=  45
a=45:3
a=15 questions are worth 5 p
b=50-15=35 questions worth 2 p