Iam a number between 30 and 40 when you put me into 8 equal groups there is an even number in each group and 1 is left over what number am i

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