book Maths Puzzle Numerical Ability

Please help me with this problem:
Two cyclists start biking from a trail�s start 3 hours apart. The second cyclist travels at 10 miles per hour and starts 3 hours after the first

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book Other Question

1) Find the measure of one central angle of a hexagon.
2) The measure of an angle is 20 more than the measure of its complement. Find the measure of the larger angle. Can you please show me how do graph, calculate the focal radius, and plot the two foci for the equation {{{4x^2+9y^2-16x+90y+205=0}}}