A drawing of a basement uses the same scale as the example. The basement is 28 feet wide and 35 feet long. How wide is the drawing?
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Given: x + y = 6. if xe (-15, -6, -1), then which of the following sets of ordered pairs are solutions? © {(-15, -21), (-6, -12), (-1, -7)} [(-15, 21), (-6, , 7)} {(-15, 21), (-6, 12), (-1, -7)}

Bob the builder is making 480kg of cement mix. this is made by cement, sand and gravel in the ratio 1: 3: 4

What are the solutions of the following system? y=-2x^2 y=x-2