Answer:
y=-40 and x is 2
Step-by-step explanation:
idk
 
        
             
        
        
        
Answer:
The total number of possibilities are 60.
Step-by-step explanation:
Given:
There are 6 digits and 3,7,9 are odd ones.
To Find:
How many possibilities are there for the rock's age
Solution:
Here condition is that number should start with odd digit 
so there 3 number only as odd(3,7,9)
So it leaves 3 repeating  numbers i.e.2
So permutation of 5 numbers with 3 odd numbers 
So possible arrangement will be 
nPr
n=5 ,r=3
So 5P3=5!/3!
And finally for all possibilities as 
=3*(5!/3!)
=3*(20)
=60
 
        
             
        
        
        
Answer:
2 + 2 + 100 + 44444 + 10101010101 = 10101054649.
Step-by-step explanation:
:)