A path is made of red tiles and blue tiles. 1/5of the tiles are red.
a) Write down the ratio of red tiles to blue tiles in its simplest form.

There is a total of 85 tiles.
b) Work out the number of blue tiles.
(2)
Total marks: 3

Hector and alex traded video games. alex gave hector one fourth of his video games in exchange for 6 video games. then he sold 3 video games and gave 2 video games to his brother. alex ended up with 16 video games. how many video games did alex have when he started?

Ahiker stands at an unknown elevation before he ascends 2 miles up a mountain to an elevation of 9 miles. find the elevation of the hiker before his ascent.

Which will form a composite function?