19. You are building the wood trellis shown in the figure so that you can grow a vine up the side of your home.
Write an expression for the total number of feet of wood needed
to build the trellis. Hint: Write separate expressions for the
number of feet of vertical pieces needed and the number of feet
of horizontal pieces needed. Then find the total number of feet
of wood needed if the trellis is 8 feet tall and 2 feet wide.
y ft

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.