Complete the proof.
Given: AB * BE = CB * BD
Prove: ABC = DBE

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

Two years ago a man was six times as old as his daughter. in 18 years he will be twice as old as his daughter. determine their present ages.

At your job you're paid $50 per week plus $3 per sale at least how many saled do you need to make in order to have over $250