7x(12+9)÷3-9=.....

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7x(12+9)÷3-9=.....

A20

B30

C40

D50

Answer:

C. 40

Read Explanation:

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

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