Answer:
A. A rational number gives you a remender when you divide it through by let say an even number 2.so irrational gives you no remender, hence A as an answer.
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Answer:
20/10 + 50=52
Step-by-step explanation:
30 Answer:
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(8z - 10) ÷ (-2) + 5(z - 1) = 8z - 10 ÷ -2 + 5z - 5 = 8z + 5 + 5z - 5 = 13z