Tommy pays $550 dollars for a new cell phone plus $121-dollar monthly fee (1) for data. Write an expression for the total expense of his phone.

The interior angles formed by the side of a hexagon have measures of them up to 720° what is the measure of angle a

(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.

The length of a rectangle plus its width is 24 cm. the area is 143 square cm. what are the length and width of the rectangle?