Ataxpayer does not have to pay estimated taxes if
1. the taxpayer’s withholding covers 90% of the tax liability for the previous year.
2. the taxpayer’s tax liability for the previous year was less than $1,000.
3. the taxpayer’s earned income credit will exceed his or her tax liability for the current year.
4. all of the answers are correct.

The correct answer is number (4): All of the answers are correct.

Explanation:

According to the Internal Revenue Service (IRS), taxpayers can be exempt from paying taxes if they earn less than $1,000 after deducting withholding and any other credit. Besides, if they paid a minimum of 90% of the tax of the current year or if the earned income credit of the previous year is higher than the current year tax, taxpayers will not have to pay taxes as well.

decentralization can the employees to get more involved in the business decision making

there's 11 people for the 1st position. then, no matter who gets it, there's only 10 left for the second, and then 9 left for the third. 11 x 10 x 9 = 990.   the answer is there are 990 different ways the positions can be filled by these applicants