7. Solve: 3\( \frac{5}{8} \)×2\( \frac{2}{5} \)
A. 6\( \frac{1}{4} \)
B. 7\( \frac{9}{16} \)
C. 8\( \frac{7}{10} \)
D. \( \frac{10}{87} \)
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8. The city’s population has grown by \( \frac{1}{6} \) in 2020, and in 2021 it has grown by another \( \frac{2}{5} \) from 2020. If in 2019 the population was 155,880 people, what has it become in 2021?
A. 72,744
B. 181,860
C. 254,604
D. 25,980
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9. If two even numbers are added to an odd number and the result is multiplied by an odd number, which of the following could be the result? Please select all that apply.
A. 62
B. 175
C. 78
D. 110
E. 193
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