# 1.4 Practice Problems

**Problem 1.4.1: **The number of fish in a pond is measured by the following exponential equation:

How many fish will be in the pond after 1 year? 5 years? 10 years? 50 years? Is this reasonable?

Answer: 312; 365; 444; 2,132

**Problem 1.4.2: **Evaluate the following logarithms. Round to two decimal places.

Answers: 6; 3; 2.57; 3.07; 2.55

**Problem 1.4.3:** Solve for when :

Answer: 41.035

**Problem 1.4.4:** Solve for when :

Answer: 29.919

**Problem 1.4.5:** Solve for when :

Answer: 29.090