the formula h =120t -16 t^2 gives the height h in feet of an object t seconds after it is shot upward from earth's surface with an initial velocity of 120 feet per second. What will the height of the object be after 6 seconds?

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

Answerit is comparative because this experiment is comparing the results of the volume at minimal pressure and then increases it; ; ;