Use the law of syllogism to draw a conclusion from the given information. given: if two lines are perpendicular, then they form right angles. if two lines meet at a 90 angle, then they are perpendicular. two lines meet at a 90 angle. a. conclusion: the lines are parallel. b. conclusion: the lines are perpendicular and meet at a 90 angle. c. conclusion: the lines meet at a 90 angle. d. conclusion: the lines form a right angle.

(50 ) 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.