(x, y)
Domain = x
Range = y
It is a function when none of the x values are repeating.
Answer - C) Both A and B 
Hope this helps and makes sense!! 
 
        
             
        
        
        
Answer: After 3 hours both will have the same cost.
Step-by-step explanation:
Let x = Number of hours and y be the total cost.
Total cost = Initial cost + (cost per hour)(Number of hours)
At Mike's Bounce Shop,
Total cost (y)= 30+2x
At Jose's Bounce Rentals,
Total cost(y) =  12+8x
When both shops have the same cost, then

Total cost = 12+8(3)=12+24=$36
Hence, After 3 hours both will have the same cost.
 
        
             
        
        
        
Answer:
$69.60
Step-by-step explanation:
20% of $58 is $11.60. So you add $11.60 + 58 which equals $69.60, so that is the total cost.
 
        
                    
             
        
        
        
Answer:
9.09090909091% decrease
Step-by-step explanation:
1 - 10/11 = 1/11 = 9.09090909091%