book Maths Puzzle Numerical Ability

A freight train and passenger train start toward each other at the same time from two towns that are 500 miles apart. After 3 hours the trains are still 80 miles apart. if the ra

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book Other Question
Find the vertex and focus of the Parabola whose equation is 4(y-2) = (x-4) ^2.

Thank you for your help! Find a, when b=10 and B=34 degrees to the nearest tenth.