Quadrilateral BCDE has vertices B(-1, -1), C(6,-2), D(5, -9), and E(-2,-8). Determine the most precise classification of BCDE: a parallelogram,
rectangle, rhombus, or square. Use the distance formula to justify your
answer.

The parabola y = x² - 4 opens: a.) up b.) down c.) right d.) left

For the rule of 78, for a 12-month period, the last term in the sequence is 12 and the series sums to 78. for an 10 month period, the last term is and the series sum is . for a 15 month period, the last term is and the series sum is . for a 20 month period, the last term is and the series sum is

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