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Discover Questions

Given a system of two linear equations in two variables, what must be true for there to be infinitely many solutions? What is the component concentration ratio, [BrO−]/[HBrO], of a buffer that has a pH of 8.75 (Ka of HBrO = 2.3 × 10−9)? I've tried everything to do #4 and can't figure it out? Taking calc 1 im not sure what i did wrong with this problem..? Help with this question?
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