Answer:
a. 28/50
d. 10/52
e. 52/52
Step-by-step explanation:
a. half of deck is black add the two red jacks
d. all of even card (2,4,6,8,10 times 2 because 2 blacks per colour)
e. all cards are either red or black
 
        
             
        
        
        
Answer:
5) the answer is 2 hours
Step-by-step explanation:
1 hour: 35% is destroyed
35% added 2 times (2 hours) equals 70%
 
        
             
        
        
        
I believe the answer is the first option. Tell me if i'm wrong. :) 
        
                    
             
        
        
        
Answer:
X=5
Step-by-step explanation:
2X+7=5X-8
7=3X-8
15=3X
5=X