Can someone help me out with 1-5 pls!?

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?

If the ratio of sum of the first m and n terms of an ap is m2 : n2 , show that the ratio of its mth and nth terms is (2m − 1) : (2n − 1).

Rewrite the following quadratic functions in intercept or factored form. show your work. y = 9 + 12x + 4x^2