Rodney multiplies 3 times itself 104 times:
3x3x3x3x...x3.
104 times (If you’ve seen exponents, this can also be written as 3^104.) What is the last digit of Rodney’s number?

Prove that quadrilateral is a rhombus.

Which of the following can be used to explain a statement in a geometric proof?

(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.