exam Maths Puzzle Numerical Ability

1)A jogger starts a course at a steady rate of 8 kph.Five minutes later,a second jogger starts the same course at 10 kph.How long will it take the second jogger to catch the first?

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exam Other Question

I didn't get how I am to get to were I need to graph it.
It asks me to Sketch the graph of each equation. If the graph is parabola, find its vertex. If the graphis a circle, find A line passing through (5,-6) and (-9, y) is perpendicular to a line with slope 14/5. Find the value of y.
A) 1
B) -4
C) -2
D) -1

Thanks for any help you can provide.