Determine what the next equation would be, and verify that it is indeed a true statement.18 × 19 = 20 × 21 - (18 + 19 + 20 + 21)19 × 20 = 21 × 22 - (19 + 20 + 21 + 22)
A. 20 × 21 = 22 × 23 - (20 + 21 + 22 + 23)
B. 21 × 22 = 23 × 24 - (20 + 19 + 18 + 17)
C. 20 × 21 = 22 × 23 - (18 + 19 + 20 + 21 + 22 + 23)
D. 21 × 22 = 23 × 24 - (21 + 22 + 23 + 24)
Answer: A
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