1. **State the problem:** Behnaz has 6.3 kilograms of wax and uses it all to make candles. Each candle uses 210 grams of wax. She sells 2/5 of the candles at 13 each, then reduces the price by 20% and sells the rest. We need to find the total money she gets. 2. **Convert units:** 6.3 kilograms = 6300 grams (since 1 kg = 1000 g). 3. **Calculate total number of candles:** $$\text{Number of candles} = \frac{6300}{210} = 30$$ 4. **Calculate number of candles sold at full price:** $$\text{Candles at full price} = \frac{2}{5} \times 30 = 12$$ 5. **Calculate number of candles sold at reduced price:** $$\text{Candles at reduced price} = 30 - 12 = 18$$ 6. **Calculate reduced price:** 20% reduction means price is 80% of original: $$\text{Reduced price} = 13 \times 0.8 = 10.4$$ 7. **Calculate total money from full price candles:** $$12 \times 13 = 156$$ 8. **Calculate total money from reduced price candles:** $$18 \times 10.4 = 187.2$$ 9. **Calculate total money:** $$156 + 187.2 = 343.2$$ **Final answer:** Behnaz gets a total of 343.2 by selling all the candles.