Question: A city does not tax the first $30,000 of a residents income but taxes any amount over $30,000 at 5%. (a) Find the tax T

A city does not tax the first $30,000 of a resident’s income but taxes any amount over $30,000 at 5%. 

(a) Find the tax T as a function of a resident’s income I 

(b) Find f(25,000) and f(45,000).

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