Find the perimeter of the triangle ABC A. 9 √84
B. 9 √2+√82
C. 18+ √82
D. None of the above

Can y’all explain it too please

What is x3+3x2−16x−48 divided by x−1?

What is the ordered pair of m’ after point m (5, 6) is rotated 90° counterclockwise?

(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.