Zoe bought 11 chicken wings for $20.90. What's the unit cost of one wing?

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 scale factor between two circles is 2x/5y what is the ratio of their areas?

How to find the exponential function y=ca^x, with points (1,2) and (2,1)