Answer:
the delivery cost represents 33.8% of the original price of the coal, rounded to the nearest tenth.
Explanation:
The delivery cost is the difference between the price paid by the power stations and the price sold by the mine, which is:
$42.59 - $31.83 = $10.76 per ton
To find the percentage of the original price of the coal that this delivery cost represents, we can divide the delivery cost by the original price of the coal and multiply by 100:
($10.76 / $31.83) x 100% = 33.8%