book Maths Puzzle Numerical Ability

10x+11/(x^2 - 4) - 3/x-2

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How do I solve this problem. A point is located in a polar coordianate system by the coordinates r = 2.5m and angle=35 degrees. Find the x and y coordinate of this point. Assuming The sum of two numbers is 1457. Four times the first number minus twice the second number is 8. Find the larger number.

I had to turn my book in so I no longer can find the answer. I am in 8th grade Pre-Algebra