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Issof claims that the scale factor is 1/2. which statement about his claim is correct

At a sale this week, a desk is being sold for $213. this is a 29% discount from the original price. what is the original price?

Aball is thrown from a height of 139 feet with an initial downward velocity of 15 ft/s. the ball's height h (in feet) after t seconds is given by the following. h=139-15t-16t^2 how long after the ball is thrown does it hit the ground? round your answer(s) to the nearest hundredth. (if there is more than one answer, use the "or" button.) t =