Avery strong wind is blowing over a big lake. a flock of geese begins their five ten to the third power meter journey home over the lake. for every five ten to the second power meters the geese fly over the lake they are blown back five ten to the first power meters by the wind. it takes three minutes for the geese to fly five ten to the second power meters forward and be blown back five ten to the first power meters. if the geese begin flying across the lake at eleven thirty in the morning what time will they reach home?

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.