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anygoal [31]
3 years ago
5

1. Suppose that there were two isotopes of Sodium.

Chemistry
2 answers:
Firlakuza [10]3 years ago
6 0

Answer: C. The university surveys 600 randomly selected students who attend the university. Correct

Explanation:

Alexus [3.1K]3 years ago
3 0

Answer: 22.72

Explanation: 28% ➡️ 0.28

72% ➡️ 0.72

(22 x 0.28) + (23 x 0.72) = 6.16 + 16.56 = 22.72

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