A certain state uses the following progressive tax rate for calculating individual income tax:
Tax Bracket ($) Rate
0 - 10,000 3%
10,001 - 50,000
5%
50,001 - 100,000 5.5%
Calculate the state income tax owed on a $60,000
per year salary.
tax = $[?]
Round your answer to the nearest whole dollar amount.

Find the length of cu, the triangles are similar.

If the measure of angle 1 is 110 degrees and the measure of angle 3 is (2 x+10 degree), what is the value of x?

Each person in an it department of 25 people works on at least one of 3 major projects: system security, program implementation, platform development. 10 people work on system security, 13 work on program implementation, and 12 work on platform development. 4 people work on system security and platform development, 5 people work on program implementation and platform development, and 2 people work on all three projects. how many people work on system security and program implementation?