Find the sum of the first five terms of the geometric series 8, −24, 72, … 484 488 648 684

In the diagram of circle a what is m

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.

These tables represent a quadratic function with a vertex at (0, -1). what is the average rate of change for the interval from x = 9 to x = 10?