exam Maths Puzzle Numerical Ability

I need to know the radius and center for this equation. It is for circles.
x^2-6x+y^2=226/25.

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exam Other Question

a plane is flying from NYC to SF. It normally flies 300 mph. there is 30 mph wind heading west to east. How long does it take to fly 200 miles to SF and how long does it take to fly 200 miles back to NYC Here is the question:
Area of a sail:
A triangular sail has an area of x2 + 5x + 6 square meters and a height of x + 3 meters. Find the length of the sails base.