book Maths Puzzle Numerical Ability

Find an equation of the line through the point (4,5) and perpendicular to the line passing through the points (-1,3) and (2,9).

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book Other Question

Log5 1/625. the question asks evaluate the logarithm. Al is 4 years younger than Ed.
Let x = Ed's age.

Then___________ = Al's age.

Question 2
The Lions played 76 ball games.
They won 3 times as many games as they lost.
How m