4. ¿Cuántos números de tres cifras distintas se pueden formar con las nueve primeras cifras del sistema decimal?

Simplify, \( 4 \sqrt{8}-\sqrt{50} \)

Multiply and then simplify by factoring, if possible \( \sqrt{3} \sqrt{21} \)

a) \( \log \frac{27 \sqrt{10}}{3^{4} \sqrt{30}} \)

5. Use Structure Ms. Bush says each team will get more baseballs if there are 6 teams in the league. Mr. Rosin says each team will get more baseballs if there are 9 teams in the league. Who is correct? Compare by writing the symbol \( > \), \( < \), or \( = \). Tell how to decide without computing.

Simplify the complex number \( i^{46} \) as much as possible.