What are the ordered pairs of the solution? (Please look at the image)

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?

Can someone factor this fully? my friend and i have two different answers and i would like to know if either of them is right. you in advance. a^2 - b^2 + 25 + 10a

The value of the expression 16-^3/4 8 1/8 -6 6 1/40 1/64