The survey of 100 residents of the city of Kharkov showed that 40 of them will vote for the ""Green Party"". The survey of 400 residents of the city of Kiev showed that 200 of them will vote for the ""Green Party"". It is true that in 95% of cases the difference of votes in favor of the party in Kharkov and Kiev will be statistically significant?

What is the value of x in the following equation? -3x-2=2x+8

An 18% discount on a watch saved a shopper $72. find the price of the watch before the discount

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.