Answer:
Bullion is money, specifically gold or silver that has been freshly mined but not cleaned and made into money.
Clues to the meaning include the fact that the kids need "3 dollars", the speaker doesn't know how they wanted all that "money" at one time, and they had to "raise" it, as in "raising money". When he says, "I hadn't any idea where to turn to raise all that bullion..." he means the 3 dollars.
Answer:
The first sentence is written in the passive voice, with a passive verb. George is the subject, so what is being done to him is the passive verb. The less passive form of the sentence would be similar to "Mrs. Millholland gave George Washington Carver piano lessons." This is the active verb, since it is being done/has been done by a person rather than a subject being acted on.
Explanation: