book Maths Puzzle Numerical Ability

write the equation of the line which has y-intercept (0,5) and is perpendicular to the line with equation y=-3x+1

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book Other Question
Evaluate the algebraic expression:

10 + 3x / (2 + 2x) when x = 5 The sum of three consecutive even integers is 126. WHAT IS THE LARGEST OF THE THREE?