#### 34.29 km/h
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- Speed = \( \frac{0.1}{\frac{10.5}{3600}} \) kilometers/hour
- = \( \frac{0.1 \times 3600}{10.5} \)
- = \( \frac{360}{10.5} \approx 34.29 \) km/h
- A store applies a 15% discount on all items during a sale. If a customer buys items originally priced at $200, $150, and $100, and then uses a $20 coupon on the total after discounts, what is the final price?
- Total original price = $200 + $150 + $100 = $450
- Discount = 15% of $450 = 0.15 * $450 = $67.50
