IM Alg2.3.2 Practice: Square Roots and Cube Roots

Rewrite the following expression as a number with no exponents.
[math]\frac{7^{\text{-}3}}{7^{\text{-}5}}[/math]
Explain or show your reasoning.
Find the value of each variable that makes the equation true.
[math](2^d)^4=2^{12}[/math]
[math]3^5\cdot7^5=e^5[/math]
[math]5^0\cdot5^f=5^4[/math]
A square has area 9 cm². How long are its sides?
The table shows the side length and area of several different squares. Complete the table using exact values.
Find the two whole numbers that are the closest to [math]\sqrt{42}[/math]. Explain your reasoning.
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Information: IM Alg2.3.2 Practice: Square Roots and Cube Roots