**Q3: **

Solve for .

- A
- B
- C
- D
- E

**Q4: **

The intensity levels of two earthquakes measured on a seismograph can be compared by the formula where is the magnitude given by the Richter Scale. In August 2009, an earthquake of magnitude 6.1 hit Honshu, Japan. In March 2011, that same region experienced another earthquake with a magnitude of 9.0. How many times greater was the intensity of the 2011 earthquake? Round to the nearest whole number.

**Q5: **

Consider the logarithmic equation .

Convert the equation to exponential form.

- A
- B
- C
- D

Solve the equation.

- AThere is no solution
- B
- C
- D

**Q6: **

Solve for .

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- E