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An employee who produces x units per hour earns an hourly wage of y = 0.85x + 8 (in dollars). Find the hourly wage for an employee who produces 10 units per hour.

A recent earthquake in Chile was a 7 on the Richter scale and a recent earthquake off the West Coast of the United States was a 5 on the same scale. Which of the two quakes was more intense and how much more intense was it ?

We are to write the following statement using mathematical symbols: **n is the product of the difference between n squared and seven, and n cubed**