book Maths Puzzle Numerical Ability

Two investments were made by totaling $8,800. For a certain year these investments yielded $1326 in simple interest. PArt of the $8,800 was invest at 4% and part at 16%. FInd the

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State the equation of the line parallel to 3x-2y-6=0 and having the same x intercept as 8x-y=4

Thanks, SUMEET SIMPLIFY EACH EXPRESSION.
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