exam Maths Puzzle Numerical Ability

how do i graph 6x+5.5y=200

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Construction. A garden area is 30ft long and 20 ft wide. A path of uniform width is set around the edge. If the remaining garden area is 400ft^2, what is teh width of the path? cross braces are often in the framing of a house. If one angle is 131.5 degree, what is the b angle