To the nearest 10th of a percent what is 8/13 written as a percent

The depreciation per unit for a company

The depth of a lake at a certain point, wich is a function of the distance of that point from shore, is 30 feet.

The height of a flare fired from the deck of a ship in distress can be modeled by h(t)= -2(8t^2-52t-28), where h is the height of the flare above water and t is the time in seconds. a. find the time it takes the flare to hit the water.