Me. smith is at starbucks. he buys a muffin for 3.50 and a number of coffees for $3 each part a: if he only has $20 in his pocket, write an inequality that could be used to calculate the number of coffees he only can buy

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 =