- A−54
- B6
- C−6
- D12
Step-by-Step Solution
7 × (−3) = −21 and (−4) × 6 = −24. So −21 − (−24) − 9 = −21 + 24 − 9 = −6. (−54 forgets that − (−24) is +24.)
Answer: C) −6
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