First question: 800J
Second question: 20.4m
1) The equivalent resistance of two resistors in parallel is given by:

so in our problem we have

and the equivalent resistance is

2) If we have a battery of 12 V connected to the circuit, the current in the circuit will be given by Ohm's law, therefore:
Answer:
You didn't give the information needed for the answer bud
Explanation:
1) True 2) True 3)True I hope I helped