Find the area of each square. Each grid square represents 1 square unit.

Square A, side length = square root of 17.Square B, side length = square root of 20.Square C, side length = square root of 13. Square D, side length = square root of 37.

Find the area of a square if its side length is:

1. 3 inches.
2. 7 units.
3. 100 centimeters.
4. 40 inches.
5. \(x\) units.

What is the value of \((3.1 \times 10^4) \boldcdot (2 \times 10^6)\)?

Noah reads the problem, “Evaluate each expression and give the answer in scientific notation.” The first problem part is: \(5.4 \times 10^5 + 2.3 \times 10^4\).

Noah says, “I can rewrite \(5.4 \times 10^5\) as \(54 \times 10^4\). Now I can add the numbers: \(54 \times 10^4 + 2.3 \times 10^4 = 56.3 \times 10^4\).”

Do you agree with Noah’s solution to the problem? Explain your reasoning.

Select all the expressions that are equivalent to \(3^8\).