Choose the One Alternative That Best Completes the Statement or Answers

question 94

Multiple Choice

Choose the one alternative that best completes the statement or answers the question.
Solve the problem.
-In a business meeting, every person at the meeting shakes every other person's hand exactly one time. The total number of handshakes for n people at the meeting is given by $$a _ { n } = \frac { 1 } { 2 } n ( n - 1 )$$ Evaluate $a _ { 12 }$ and interpret its meaning in the context of this problem.

• A) 132; If 12 people are present at the meeting there will be 132 handshakes.
• B) 66; If 12 people are present at the meeting there will be 66 handshakes.
• C) 11; The 12th person shakes performs 11 handshakes.
• D) 78; If 12 people are present at the meeting there will be 78 handshakes.

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Definitions:

Social Security (FICA) Tax

A mandatory payroll tax funded by both employers and employees to finance Social Security benefits.

Annual Income

The total amount of money earned by an individual or entity within a year from all sources, including wages, salaries, bonuses, and investments.

Marginal Tax Rate

The rate at which the last dollar of a taxpayer’s income is taxed, indicating the proportion of additional income that is paid in taxes.

Proportional Tax

A tax system where the tax rate remains constant regardless of the amount subject to taxation.