The lines s and t intersect at point R. What is the value of y?

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y =

Lines t and s intersect at point R. Obtuse vertical angles measure seventy-nine plus y degrees and four y minus eight degrees.

Lines t and s intersect at point R. Obtuse vertical angles measure seventy-nine plus y degrees and four y minus eight degrees.

well in order to answer this question you have to provide more information < 3

there are two significant figures.