Trouble with circuit calculations

[stu12345]

Homework Statement

I uploaded a picture of the circuit diagram I'm using. Basically I'm having trouble with filling out the rest of the table.

Homework Equations

Ohm's law:
V=IR
series circuit: R_(eq)= R₁ + R₂ + R₃...
parallel circuit: 1/R_(eq)=1/R₁ + 1/R₂ + 1/R₃ ...

Kirchhoff's Law:

series circuit: the source current equals the current through each load.
series circuit: the source voltage equals the sum of the voltages across each of the loads

parallel circiut: the source current equals the sum of the currents through the loads.
parallel circuit: the source voltage equals the voltage across each load.

The Attempt at a Solution

The attempt of the solution can be found in the picture I uploaded. Any help is much appreciated.

Please I really need help.

 

[collinsmark]

You've calculated the current through R₁, so what does Ohm's law tell you about the voltage drop across R₁?

[Edit: Oh, and by the way, welcome to Physics Forums!]

 

[zgozvrm]

It may help you to think of the parallel combination of R2 and R3 as a single 6 ohm resistor, R4. Then, you would have an equivalent circuit that is purely series-connected.

What, then, is the current through R1 and R4?