Using the linear combination method, what is the solution to the system of linear equations 7x-2y=-20 and 9x+4y=-6?
O (-3,2)
O (-2,3)
O (2, -3)
O (3,-2)

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Julia is going for a walk through the neighborhood. what unit of measure is most appropriate to describe the distance she walks?

The figure below shows rectangle abcd and the triangle eca on a coordinate plane.which of the following expressions represents the perimeter of triangle of triangle eca in units