exam Maths Puzzle Numerical Ability

Please Help! I don't not know how to solve these problems.
1. A temperature of 41 degrees F is equivalent to 278.2 degrees K, while a temperature of 86 degrees F is equivalent to

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exam Other Question

How many cm. does 10 inches equal? 5. x2+4x+3

6. x2+6x-2

10. 3x2+4x-5

14. -4x2+8x+1