Answer:
You can do this on ur own 
Step-by-step explanation:
Trust me
 
        
                    
             
        
        
        
Answer:
P
Step-by-step explanation:
 
        
             
        
        
        
"Will is twice as old as Jill."
                       Jill's age . . . . .   J
                       Will's age . . . . 2J .
"Three years ago . . . 
                       Jill's age then . . . . .   J - 3
                       Will's age then . . . . 2J - 3
". . . Jill's age then was 2/5 of Will's age then."
                                         J - 3  =  (2/5) (2J - 3)
Multiply 
each side by  5 :          5J - 15  =  2 (2J - 3)
Divide
each side by  2 :          2.5 J - 7.5  =  2J - 3  
Subtract  2J
from each side:            0.5 J - 7.5  =      -3
Add  7.5
to each side:                0.5 J           =     4.5
Multiply 
each side by  2 :                J            =       9
Jill is  9  y.o. now.
Will is 18 y.o. now.
        
             
        
        
        
I would say 6 hours but i don’t think it is, sorry this one is a real tricky one
        
             
        
        
        
Answer:

![\rule[225]{225}{2}](https://tex.z-dn.net/?f=%5Crule%5B225%5D%7B225%7D%7B2%7D)
Step-by-step explanation:
Let the number be x.

Dividing both sides by 4,

Subtracting 8 from both sides,

The number is -7.
![\rule[225]{225}{2}](https://tex.z-dn.net/?f=%5Crule%5B225%5D%7B225%7D%7B2%7D)