joyb6444 joyb6444

11-11-2021
Mathematics

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whats the answer can someone answer please

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Respuesta :

jtorres1234 jtorres1234

11-11-2021

Answer:

21. 2x + 28

22. 18a - 17b

23. He flipped the numerator and denominator, 6.4 with 7.2 and he added the exponents instead of subtracting.

24. 8.8888888888889 × 10^{0}

Step-by-step explanation:

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