Simplify the following expression: -5[(x3 + 1)(x + 4)]
A. 4 + 4x3 + x + 4
B. x4 + 3 + 4x
C. -5x4 + 20X3 - 5
D. -5x4 - 20X3 - 5x- 20

Multiply. −2x(6 x 4 −7 x 2 +x−5) express the answer in standard form. enter your answer in the box.

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Two streets intersect at a 30- degree angle. at the intersection, the are four crosswalks formed that are the same length. what type of quadrilateral is formed by the crosswalks?