Aball is thrown straight up from the top of a building that is 185ft high with an initial velocity of 64ft/s. the height of the object can be modeled by the equation s(t) = -16t 2 + 64t + 185. in two or more complete sentences explain how to determine the time(s) the ball is higher than the building in interval notation.

Joel wants to buy a new tablet computer fram a store having a 20% off sale on all tablets. the tablet he wants has an original cost of $190. he also wants to make sure he has enough money to pay the 5% sales tax. part one joel uses the incorect expression 0.95(190)(0.8) to calculate that the tablet will cost him a total of $144.40. describe his error and write the correct expression part two how much will joel pay for the tablet show your work if you answer this question correctly you will receive a prize of 99 points good luck