Find the sum: (x2 + 2x + 3) + (3x2 + x + 1)

A. 3x^4+4x+3

B. 4x^2+3x+4

C. 4x^3+3x+4

D. 4x^4+4x+3

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The sum of three consecutive odd integers is forty five written as an algebraic equation would be: x + (x+1) + (x+3) = 45 True or False

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The perimeter of a pentagon is the sum of the lengths of its sides. In a regular pentagon, all sides have the same length. If the perimeter of a regular pentagon is 641.5 centimeters, then what is the length of one side of the pentagon? P-6415 cm

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