exam Maths Puzzle Numerical Ability

Please help me .I need to fine the equation ,in standard form, with all integer coefficients, of the line perpendicular to x+2y=8 and passing through (1,-6)



Thanks very much for all your help .

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exam Other Question

I need some help with this problem


Simplify assume x represents a positive number

Sqaure root of 80x^4
directions: express each fraction as a decimal in simplest form. i expressed 7/33 as a decimal in simplest form 0.21 and a line over 21 to make it repeating. am i correct?