There are two photography stores in town that do custom film developing, Perfect Picture (abbreviated PP) and
Dynamic Developers (abbreviated DD). At PP the cost to
develop one roll of specialty film is $12 but any additional
rolls of film cost only $10. At DD the cost of developing
one roll of film is $24 but each additional roll is developed
at a cost of only $8. For what number of rolls of film is the
cost of developing the same at PP and DD?

(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.