Question: just need a b plz write it clear thank you 7. (16 points) Determine whether each of these sets is finite, countably infinite or uncountable.

just need a b plz write it clear thank you 7.

just need a b plz write it clear thank you

7. (16 points) Determine whether each of these sets is finite, countably infinite or uncountable. (a) integers not divisible by 3 (b) integers divisible by 5 but not by 7 (c) the real numbers with decimal representations consisting of all 1s (d) the real numbers with decimal representations of all 1s or 9s

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