A popular brand of pen is available in 6 colors and 4 writing tips. How many different choices of pens do you have with this brand? There are \( \square \) different choices of pens with this brand.

Multiply. Simplify. \( 8 \times 1 / 5= \)

Find the absolute value of \( 5 \).

Consider the following arithmetic sequence. \[ \begin{array}{l} 2, \frac{9}{2}, 7, \ldots \\ d=\square \\ a_{1}=\square \\ \text { (a) Identify } d \text { and } a_{1} \\ \text { (b) Write the next three terms. } \\ a_{4}=\square \\ a_{5}=\square \\ a_{6}=\square\end{array} \]

18/45 simplifies to...

3. List all the pairs of whole numbers that multiply together to create the product 200 . \( 2 \times 100 \quad 8 \times 25 \) \( 4 \times 50 \quad 20 \times 10 \)