Which situation could be modeled by the graph shown if the x-axis is time in seconds and the y-axis is distance in feet?

a) a man jumps out of a plane and about 3 seconds after he jumps he opens his parachute.

b) a egg is dropped from a window on a tall building and hits the ground about 12 seconds later.

c) an owl is flying in the air and after about 3 seconds he dives to the ground to catch a mouse.

d) a ball is thrown out of a window on a tall building and hits the ground about 12 seconds later.

e) a ball is thrown up into the air from a person standing on the ground and then hits the ground about 12 seconds later.

(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.