Use a vertical format to add the polynomials.1.8x3 + 7.9x2 +   4.8   6.9x - 2.8   -3.7x2 +   x + 9.9______________________

A. 1.8x3 + 4.2x2 + 7.9x + 11.9
B. 1.8x3 + 4.2x2 + 6.9x + 11.9
C. 13.9x6 + 11.9
D. 1.8x3 + 11.6x2 + 5.9x - 7.9

Answer: A

Mathematics

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