1. The problem asks to find the difference in cost between 300 g of potatoes and 300 g of carrots using the graph. 2. From the graph description: - Potatoes cost about 30 pence at 500 g, so cost per gram is approximately $\frac{30}{500} = 0.06$ pence/g. - Carrots cost about 20 pence at 500 g, so cost per gram is approximately $\frac{20}{500} = 0.04$ pence/g. 3. Calculate the cost for 300 g of each: - Potatoes: $300 \times 0.06 = 18$ pence - Carrots: $300 \times 0.04 = 12$ pence 4. Find the difference in cost: $$18 - 12 = 6$$ 5. Therefore, the difference between the cost of 300 g of potatoes and 300 g of carrots is 6 pence.