Find the value of each expression when \(x=3\).

1. \(2^x\)
2. \(x^2\)
3. \(1^x\)
4. \(x^1\)
5. \(\left(\frac12\right)^x\)

Find the value of each expression for the given value of \(x\).

1. \(2 + x^3\) when \(x\) is 3 

2. \(x^2\) when \(x\) is \(\frac{1}{2}\) 

3. \(3x^2+3\) when \(x\) is 5 

4. \(40 + x^2\) when \(x\) is 6

Decide if the expressions have the same value. If not, decide which expression has the greater value.

1. \(2^3\) and \(3^2\)
2. \(1^{31}\) and \(31^1\)
3. \(4^2\) and \(2^4\)
4. \(\left(\frac12\right)^3\) and \(\left(\frac13\right)^2\)

Match each equation to its solution.

An adult pass at the nature center costs 1.6 times as much as a child’s pass.

1. How much does an adult pass cost if a child’s pass costs:

   \$5?

   \$10?

   \(w\) dollars?

2. A child’s pass costs \$15. How many dollars does an adult pass cost?

Jada reads 5 pages every 20 minutes. At this rate, how many pages can she read in 1 hour?

• Use a double number line diagram to find the answer.

Double number line, 4 evenly spaced tick marks. Top line, pages read. Beginning at first tick mark, labels: 0, 5, box, box. Bottom line, time minutes. Beginning at first tick mark, labeled 0, 20, 40, 60.

• Use a table to find the answer.

Which strategy do you think is better, and why?