Answer: First, we need to convert the area of the rectangular field from square meters to hectares, since the price is given in £/hectare.
The area of the field is:
300m x 80m = 24000 m²
To convert this to hectares, we divide by 10,000:
24000 m² ÷ 10,000 m²/hectare = 2.4 hectares
Now we can calculate the cost of the field by multiplying the area in hectares by the price per hectare:
2.4 hectares x £4000/hectare = £9600
Therefore, the cost of the rectangular field at Bacon farm is £9600.