Solve the problem.The numbers on the right in the equations below are the hexagonal numbers. Write the next two equations in the sequence: 1 = 1 1 + 5 = 6 1 + 5 + 9 = 15 1 + 5 + 9 + 13 = 28 
= 
= 
A. 1 + 5 + 9 + 13 + 15 = 43
1 + 5 + 9 + 13 + 15 + 17 = 60
B. 1 + 5 + 9 + 13 + 19 = 47
1 + 5 + 9 + 13 + 19 + 27 = 74
C. 1 + 5 + 9 + 13 + 17 = 43
1 + 5 + 9 + 13 + 17 + 21 = 60
D. 1 + 5 + 9 + 13 + 17 = 45
1 + 5 + 9 + 13 + 17 + 21 = 66
Answer: D
Mathematics
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A. 
B. 
C. 
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