I have 4 blue chips and 8 red chips, and 12 white chips. Find the probability of picking a red and then a white without replacement

The square pyramid has a volume of 441 cubic inches. what is the value of x? 1/7x is the height x is the base

(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.

This summer the number of tourists in salem increased 4.5% from last years total of 426000. how many more tourists came to salem this summer