Math

A certain country taxes the first $20,000 of an individual's income at a rate of 15%, and all income over $20,000 is taxed at 20%.
a. Al makes $16,000. Betty makes $36,000. How much is each taxed?
b. Write a piecewise function T that specifies the total tax on an income of x dollars.
c. Catina is taxed $5000. What is her income.

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asked by Jackie
  1. if i </= 20,000
    tax = .15 * i

    if i> 20,000
    tax = 3,000 + 0.20 ( i - 20,000)

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    posted by Damon
  2. does the i mean income?

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    posted by Jackie
  3. yes, use x

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    posted by Damon

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