Aluminum has 13 electrons. how many electrons are found in the outermost energy level for this atom which energy level is the outermost

Those electrons would be called valence electrons. Check the group number. 3 would be the amount in the outermost shell, so those are the valence electrons. 

Answer is 3 

Ohm's law tells you that i = v/r where v is equivalent voltage and r is equivalent resistance of the circuit
since all circuits have the same voltage, your question is really asking which circuit has the lowest total resistance, since the lower the resistance, the higher the current
circuit a has a resistance of 5 ohms; circuit c is in series so has a resistance of 10 ohms; circuit b is in parallel and therefore has a resistance of 2.5 ohms (review your notes on adding resistances in parallel and series); therefore b has the highest current

Your answer is 120miles