Question:

7 × (12 + 9 ) ÷ 3 - 9 = ?

A20

B30

C40

D50

Answer:

C. 40

Explanation:

7 × (12 + 9 ) ÷ 3 - 9 = 7 × 21 ÷ 3 - 9 = 7 × 7 - 9 = 49 - 9 = 40


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