Find the perimeter
of the trapezium.
10.6 cm
10.6 cm
24.5 cm
21 cm

Prove that quadrilateral is a rhombus.

If private savings 'v' = 0.75s and total savings 's' equals $4.20 billion, solve for public and private savings.

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