Write Out the Sum $$\sum _ { k = 1 } ^ { 4 } ( k + 6 )$$

question 98

Multiple Choice

Write out the sum. Do not evaluate.
- $$\sum _ { k = 1 } ^ { 4 } ( k + 6 )$$

• A) \(10 + 11 + 12 + 13\)
• B) \(7 + 8 + 9 + 10\)
• C) \(7 + 8 + 9 + 10 + \ldots\)
• D) \(6 + 7 + 8 + 9\)

---

Definitions:

Productivity Per Worker

The average output produced by an employee within a specific time period, reflecting the efficiency of labor.

Productivity Growth

An increase in the efficiency of production, often measured as the increase in output per unit of input over time.

Computers

Electronic devices that are capable of executing a series of arithmetic or logical operations.

U.S. Investment Spending

Money expended on capital goods in the United States, which includes expenditures on equipment, infrastructures, and buildings.