exam Maths Puzzle Numerical Ability

Caridad is six years older than her sister. Four years ago she was 4 times as old as her sister. how old Caridad.

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exam Other Question
Find the slope and y-intercept of 2x - 3y = 6 Geometry. The area of a rectangle of length x is given by 3x^2 + 5x. Find the width of the rectangle.