At the book sale, all books cost less than \$5.

1. What is the most expensive a book could be?
2. Write an inequality to represent the costs of a book at the sale.
3. Draw a number line to represent the inequality.

Kiran started his homework before 7:00 p.m. and finished his homework after 8:00 p.m. Let \(h\) represent the number of hours Kiran worked on his homework.

Decide if each statement is definitely true, definitely not true, or possibly true. Explain your reasoning.

1. \(h > 1\)

2. \(h > 2\)

3. \(h < 1\)

4. \(h < 2\)

Consider a rectangular prism with length 4 and width and height \(d\).

1. Find an expression for the volume of the prism in terms of \(d\).

2. Compute the volume of the prism when \(d=1\), when \(d=2\), and when \(d=\frac12\).

Match each written statement with a mathematical statement. All of these statements are true.

Here are five sums. Use the distributive property to write each sum as a product with two factors.

1. \(2a+7a\)
2. \(5z-10\)
3. \(c-2cd\)
4. \(r+r+r+r\)
5. \(2x-\frac12\)