The length of a bus is 10 metres. Gurjeet makes a model of the bus.
He uses a scale of 1 cm to 40 cm.
Work out the length of the model of the bus.
Give your answer in centimetres.

If f(x) = 2x + 8 and g(x) = x4, what is (gº)?

What is the sum of these mixed numbers 4 2/3+ 3 1/9

(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.