exam Maths Puzzle Numerical Ability

Write an equation in standard form for the line that has an undefined slope and passes through (-2,8)

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exam Other Question

The length of a rectangle is 2 in. more than twice its width. If the perimeter of the rectangle is 46 in., find the width of the rectangle. Solve following systems of linear inequalities graphically

15x+20y<300
x+y<18



Don't understand this problem at all.