Use a calculator to work these exercises. (See Examples 1 and 2.)The Minnesota state incom...

Use a calculator to work these exercises. (See Examples 1 and 2.)

The Minnesota state income tax for a single person in 2013 was determined by the rule

where x is the person’s taxable income. Find the tax on each of these incomes. (Data from: www.taxbrackets.org.)

(a) $20,000

(b) $70,000

(c) $120,000

Example 1

Finance If you were a single person in Connecticut in 2013 with a taxable income of x dollars and x ≤ $500,000 then your state income tax T was determined by the rule

Example 2

Suppose the projected sales (in thousands of dollars) of a small company over the next 10 years are approximated by the function