In the diagram below, DE is the perpendicular bisector of FG. Which of the following statements must be true?
Check all that apply
H
A. His the midpoint of FG
B. DHER
O C. DE is perpendicular to FG
D. DHF is a right angle

Give the equations of two different lines that are perpendicular to the line 3x + 4y = 7.

If sec theta = 5/3 and the terminal point determined by theta is in quadrant 4, then

(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.