The shop had 900 packets of sugar. Afte packets of sugar left. How many packets d What is the question? What are the numbers? Make a drawing

4. Escribi tres fracciones equivalentes a \( \frac{1}{6} \) y tres fracciones equivalentes a \( \frac{1}{10} \)

Why do experiments need randomization? to implement confounding to eliminate all lurking variables to reduce bias

\( \begin{array}{ll}\text { (b) } y-4=6 & \text { (F) } 9-8 y=27-2 y \\ \text { (c) } 2 x-3=5 & \text { (g) } 10 x+21=15-2 x \\ \text { (B) } 1-42 w=9 & \text { (1) } x-10=12\end{array} \)

51. \( \cot \theta+\tan \theta=\sec \theta \csc \theta \)

Convert \( 54 \% \) to a fraction and a decimal. Fraction: \( 54 \%= \) Decimal: \( 54 \%= \)