Two resistors have resistances R1 and R2. When the resistors are connected in series to a 12.0-V

Question:

Two resistors have resistances R1 and R2. When the resistors are connected in series to a 12.0-V battery, the current from the battery is 2.00 A. When the resistors are connected in parallel to the battery, the total current from the battery is 9.00 A. Determine R1 and R2.