Question 261910
1)
Can't be solved because there are three variables and only one equation.
We could solve for one of the variable in terms of another but you didn't ask for 
that.
2)
Similar problem here two variables and only one equation.

Reminder of website rules
one problem per submission
limit four submissions daily and 
no similar problems
There are more rules.

Suggestions 
Make sure you copy the problem correctly
Do NOT put the problem in your own words
Include all known info including any answers
Tell us what you have tried and where you are stuck
Don't try to BS.
We know many of you are just trying to get us to do your homework