exam Maths Puzzle Numerical Ability

A trianglehas an area of 39cm^2. The base is 7 cm shorter than the height. Find the base and height.

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exam Other Question

write an equation in slope-intercept form for the line that satisfies each set of conditions.

PASSES THROUGH (1,-1),PARALLEL TO THE LINE THAT PASSES THROUGH (4,1) AND (2,-3)
Determine the algebraic rule for the line that:
contains (5,0) and is perpendicular to x=-1