d. 20 x [9 - 21 = {97 – 94}] ]
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Answer:
20 × [9 -21 ÷ {97 -94}]
20 × ( 9 - 21 ÷ 3 )
20 × ( 9 - 7 )
20 × 2
40
Step-by-step explanation:
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