Which of the following is true about a parallelogram? The diagonals bisect each other.
The diagonals are equal.
The diagonals are perpendicular.
All sides are congruent.

Enter the missing numbers in the boxes to complete the table of equivalent ratios of lengths to widths. ? 18 8 ? 10 30 12 ?

Ineed with math stuff it involves graphs

Gravel is being dumped from a conveyor belt at a rate of 25 ft3/min, and its coarseness is such that it forms a pile in the shape of a cone whose base diameter and height are always equal. how fast is the height of the pile increasing when the pile is 14 ft high? (round your answer to two decimal places.) ft/min