You draw two balls from an urn and track the colors. When you start, it contains three blue balls and one red ball.

Adifferent website gives the cost for the first train as £56.88 and the second train as £20.11 with a £9.50 charge for cycle storage for the whole trip. how much would the journey cost you?

Average acceleration: i have no idea how to do this.

What expression is equivalent to 42x-56y