Consider the congruent triangles shown. Which set of transformations can be used to prove the triangles are congruent?

A
First reflect △XYZ across the y-axis, then rotate it 90° counter-clockwise about the origin.

B
First reflect △XYZ across the y-axis, then translate it down 8 units.

C
First reflect △XYZ across the x-axis, then rotate it 90° counter-clockwise about the origin.

D
First reflect △XYZ across the x-axis, then reflect it across the y-axis.

What’s 8y+48 and factor each expression completely

3x = 729 solve for x plz . it's urgent. will mark

(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.