Answer:
Step-by-step explanation:
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5/7 can be written as 0.714285
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7/9 can be written as 0.777
∴ An irrational number between 5/7 and 7/9 is 0.72010010001.....
or u ca write other numbers also like
0.73010203.....
0.74090080007.....
the answer to your question is c. -25