''Guess method''

1. G
   In the response question the variable with units are given, what you need to do is provide your anwser with variable and units given from the response.

2.U
   In a response question there are always a problem, so as an anwser we have to have a variable= ? this is what are you trying to find.

3.E
   As you have the units and the variables with units given all you need is the formula to help solve the problem.

4.S
    If you have your formula all you need to do is plug in what is given it needs units.

5.S
   Now anwser your formula step by step and include units in your anwser.