Introduction to the course, problem solving

1. Round 84,619 to the nearest hundreds place:
2. Evaluate $20 - 3(6-4)^2 + 5$
3. Calculate: Be sure the final answer is in lowest terms.

$ \frac{3}{5} + \frac{1}{2} $

4. Fill in the chart below: Simplify all fractions.
   1. Convert $\frac{3}{8}$ into a decimal
   2. Convert $0.04$ into a ...