How many ways can you select 3 books from a list of 10?

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 =

An 18% discount on a watch saved a shopper $72. find the price of the watch before the discount

X-10/4 when x = –18 a 7 b –2 c –7 d 2