Three forces with magnitudes of 10. newtons,
8 newtons, and 6 newtons acting concurrently
on an object produce equilibrium. The resultant
of the 6-newton and 8-newton forces has a
magnitude of
(1) 0.0 N
(2) between 0.0 N and 10. N
(3) 10. N
(4) more than 10. N

100 pounds is 100 pounds no matter the object or item being weighed

The correct choice is c

Answer(b) 60 miles per hour;

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