Answer:
9/10
Step-by-step explanation:
Since there is only one marble per number and there is only one marble for the number 8 you would take just subtract 10-1 which would give you 9.
 
        
             
        
        
        
Answer:
-40
Step-by-step explanation:
(-40) divided by 5 is (-8)
 
        
                    
             
        
        
        
No, he needs to do 5(to the power of 2) plus 3(to the power of 2)
this should give him 25 plus 9 = 34
        
             
        
        
        
Answer:
For every 1 liter of bleach there are 9 liters of water in the solution
Step-by-step explanation:
∵ The ratio of bleach to water in a cleaning solution is 2 : 18
- That means for every 2 liters of bleach there is 18 liters of water
∵ There is 1 liter of bleach
- Let us use the ratio method
→  bleach  :  water
→  2           :  18
→  1            :  x
- By using cross multiplication 
∴ x × 2 = 1 × 18
∴ 2 x = 18
- Divide both sides by 2
∴ x = 9
∵ x represents the number of liters of the water in the solution
∴ The number of liters of the water in the solution is 9 
For every 1 liter of bleach there are 9 liters of water in the solution