The diagram shows a party-filled petrol tank. A quarter of the tank is filled with petrol.

1 cubic metre is equivalent to 1000 litres.
Work out how many more litres of petrol are needed to fill the tank .

There are 45 questions on your math exam. you answered 810 of them correctly. how many questions did you answer correctly?

Tatiana reads 40 pages of her book every night for x number of nights. write an expression that shows the number of pages she has read

Graph a triangle (xyz) and reflect it over the line y=x to create triangle x’y’z’. describe the transformation using words. draw a line segment from point x to the reflecting line, and then draw a line segment from point x’ to the reflecting line. what do you notice about the two line segments you drew? do you think you would see the same characteristics if you drew the line segment connecting y with the reflecting line and then y’ with the reflecting line? how do you know?