alleryUnder a ∗ b = 2a − b, calculate 7 ∗ (3 ∗ 4).
A18
B14
C10
D12
Answer & Solution
Correct answer: D. 12
The bracket gives 3 ∗ 4 = 6 − 4 = 2, and 7 ∗ 2 = 14 − 2 = 12.
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