Grade 8 | Unit 7 | Lesson 14: Multiplying, Dividing, and Estimating with Scientific Notation | Practice Problems

Evaluate each expression. Use scientific notation to express your answer.

The graph represents the closing price per share of stock for a company each day for 28 days. What variable is represented on the horizontal axis?

• The day

• The company

• The share price

• The closing stock

In the first week, was the stock price generally increasing or decreasing?

• Increasing

• Decreasing

During which period did the closing price of the stock decrease for at least 3 days in a row?

• Days 1 to 3

• Days 4 to 6

• Days 7 to 10

• Days 11 to 13