The initial cost is $12 to enter.
Each ticket is $.50
we want to find out how much it costs for 70 tickets so we multiply the cost by the amount;
70 x .50 = 35
Therefor including the entry fee, it would cost $35 + $12
Which is $47
I hope this helps! :)
 
        
             
        
        
        
it would be b or c depending on a's number
 
        
             
        
        
        
Answer:
it be nine argrgrgrg now fillllllller