Acatapult launches a boulder with an upward velocity of 120 ft/s. the height of the boulder, h, in feet after t seconds is given by the function h = -16t^2 + 120t + 10. how long does it take to reach maximum height? what is the boulder's maximum height? what is the boulder's maximum height? round to the nearest hundredth, if necessary.

Mrs. julien’s and mrs. castillejo’s classes are selling cookie dough for a school fundraiser. customers can buy packages of macadamia nut chip cookie dough and packages of triple chocolate cookie dough. mrs. julien’s class sold 25 packages of macadamia nut chip cookie dough and 30 packages of triple chocolate cookie dough for a total of $221.25. mrs. castillejo’s class sold 5 packages of macadamia nut chip cookie dough and 45 packages of triple chocolate cookie dough for a total of $191.25. (a) write the system of equations that model the problem. be sure to explain which equation represents which situation. (b) find the cost of each type of cookie. show your work. (c) explain which method you used to solve the system and why you chose that method.