Ineed to know how to do surface area of prisms and cones

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?

Gh bisects fgi. find the measure of hgi •15° •21° •10° •8°

Geometry in the diagram, ∠abc is a right angle. ∠dbc = 30°27'40". find the measure of ∠abd.