Which of the following shows 7 + (x + 4y) rewritten using the associative property of addition? select one: a. 7 + x + 4y b. 7x + (4 + y) c. (7 + x) + 4y d. x + (7 + 4y)

Which statement about perfect cubes is true

One side of a rectangle is 7 feet shorter than seven times the other side. find the length of the shorter side if we also know that the perimeter of the rectangle is 306 feet.

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