Which property is always true for a rhombus but not always true for a parallelogram?
answer

the opposite angles are equal.
the diagonals are perpendicular.
the diagonals bisect each other.
the adjacent angles are supplementary

Suppose that a disk drive has 5,000 cylinders, numbered 0 to 4,999. the drive is currently serving a request at cylinder 2,150, and the previous request was at cylinder 1,805. the queue of pending requests, in fifo order, is: 2069, 1212, 2296, 2800, 544, 1618, 356, 1523, 4965, 3681