Exponential Review

Jean invested $380 in stocks. Over the next 5 years, the value of her investment grew, as shown in the table.

Estimate the value of the investment after 10 years. Use the calculator to estimate an exponential regression equation.

• $562

• $550

• $573

• $587

• 3.41%

• 2.8%

• 0.28%

• 0.47%

A student cuts pieces of ribbon to decorate a banner. The first piece of ribbon is 48 inches long. The next is one-half the length of the piece before it, and so on. What is the total length of the first 6 pieces of ribbon?

• 93 inches

• 94.5 inches

• 96 inches

• 100.5 inches

The list shows the first five terms of a series.

{12, 42, 147, 514.5, 1800.75, ...}

Write an expression to represent the sum of the first n terms of the series.

• 
• 
• 
• 

• left 5 units; up 5 units

• right 5 units; up 7 units

• left 5 units; down 5 units

• right 5 units; down 7 units

• 2.42

• 0.312

• 1.29

• .0436