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211elizabeth

It would be six units because 7-1=6

The distance between two points A(x₁,y₁) and B(x₂,y₂) is:
dist (A,B)=√[(x₁-x₂)²+(y₁-y₂)²]

The distance between point R(-1,7) and point T (-7,7) would be:
dist (R,T)=√[(-1+7)²+(7-7)²]=√(36+0)=√36=6

Answer: 6 units.

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