Premise:
"Anyway, all this tomfoolery is a great waste of time, continued the lady, glancing up and down the jury disparagingly. "
Hypothesis: The female prosecutor thought the matter was a waste of time.

it is not possible to tell

Premise:
"From Chapter 2, roughly 1,125 tons of steel is needed for a 500 MWe FGD system, which is about 2.25 tons per MWe."
Hypothesis: They need 5,294 tons of steep.

no

Premise:
"One consequence is that the United States needs fewer land-based nukes since it is no longer planning all-out war with Russia."
Hypothesis: The US is not planning war with Russia.
yes