15. DIG DEEPER You distribute flyers equally among 8 rooms. Your friend distributes flyers equally among 9 rooms. Who distributes more flyers in each room? Explain.

17. Without using a calculator evaluate. 18. The lengths of three wires were \( 30 \mathrm{~m}, 36 \mathrm{~m} \) and 84 m . Pieces of wire of equal lenght were cat from the three wires. Calculate the least number of pieces obtained.

Express 1728 and 2025 in terms of their prime factors. Hence evaluate \( \frac{\sqrt[3]{1728}}{\sqrt{2025}} \)

Lelt's Discuss A wristwatch was sold for Php 2500.00 with a \( 20 \% \) discount. What was the original price of the wristwatch? Solution: \( D R=20 \%, \mathrm{SP}=2,500, \mathrm{OP}= \) ?

Умножь: \( \frac{2}{17} \cdot 4=\frac{\square}{\square} \).

Write down the following numbers in standard form. a 640000 b 0.0006