Solve this linear programming problem using graphical methods. Restrict  x ≥ 0 and y ≥ 0. Maximize f = 3x + 9y, subject to the following. 7x + 3y  ≤  105 2x + 5y ≤ 59 x + 7y ≤ 70 f = ?

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A: I have explained everything with in the solution. Please go through that.

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