Help plz ?

Explanation:

1. First, let's find the total resistance of the circuit. We begin by combining , and :

Now time to combine and and they are connected in series so

Note that and are connected in parallel so

Finally, is connected in series with so the total resistance is

2. The total current in the circuit is

3. The voltage drop across is

4. We can see that . To solve for , we need , which is just , which gives us

5. From #2 & #4, and we also know that the voltage drop across is 7 V, the same as that of . The voltage drop across is

This means that the voltage drop across is 7 V - 5.4 V = 1.6 V. Knowing this, the current through is

okay i have so many questions. but the big one here is: um wt..f is this mess? ?