Sentence 1: 1 Many of the challenges discussed in that series represent long-standing, difficult, and complex problems that our work has shown will not be easily or quickly resolved.

Sentence 2: That series discusses several challenges that won't be easily overcome.
Is this second sentence entailed by the first?

Answer: yes

Sentence 1: add two years if you're a happily married man, and subtract three if you don't exercise), while a sidebar explains the many benefits and few risks of estrogen therapy.

Sentence 2: The sidebar gives more information on the pros and cons of estrogen.
Is this second sentence entailed by the first?

Answer: yes

Sentence 1: So if all 78 hypotheses are true, then roughly 7.8 of them--call it eight-- should be confirmed overwhelmingly.

Sentence 2: 8 should be easily confirmed if they are all true.
Is this second sentence entailed by the first?

Answer:
yes