An orbital to represent the arrangement of all the electrons in a particular atom.

18. [Multiples / Factors / Primes] Express 52 as a product of prime numbers by completing the factor tree.

rình \( \left\{\begin{array}{l}x+y=9 \\ x-y=-1\end{array}\right. \) là

7. Migher Order Thinking James says thet he used grouping symbols to find four equal values for \( 2^{3}+3 \times 9-4^{2} \). He wrote these expressions: \( 2^{3}+3 \times 9-4^{2} \) \( \left(2^{3}+3\right) \times 9-4^{2} \) \( 2^{3}+3 \times(9-4)^{2} \) \( 2^{3}+\left(3 \times 9-4^{2}\right) \) Do you agree with James? Explain.

Solve \( -9 x^{2}=30 x+25 \) using the

9. Представыте, что вам необходимо подготовить науное сообщение диких животных вашего края. Составьте и эапишите 8-10 понскввых росов, демонстрируощих логику подбора материала в интернет-источ- ах.