Betty has a checking account and a non-interest bearing savings account. the function c(x), shown below, represents her checking account balance, where x is the number of months. the function s(x), shown below, represents her saving account balance. c(x) = -2401 - 140 + 1,400 s(s) = 4503 + 100 which function represents betty's total account balance. t(x)?

Find the perimeter of the figure shown above. a. 40 cm c. 52 cm b. 60 cm d. 75 cm select the best answer from the choices provided

The midpoints of the sides of the large square are joined to form a smaller square. what is the area of the smaller square

(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.