A6 pack of undershirts cost 13.98. this is 3.96 less than the cost of buyng 6 individual shirts if each undershirt cost the same amount , how much does each undershirt cost when purchased individually.

So you know the pack is 13.98 and is 3.96 less that 6 shirts individually. So you add 13.98 and 3.96 together and then divide that by 6 which will give you the individual shirt amount. The answer will be 2.99 per shirt.

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

We have no idea what the graph shows, or why it may be accurate,  because we can't see the graph.on a different subject, choice ' d ' is the only true statement among the choices.