because
5 tons per shipment
The more times of transportation, the more tons of goods.
contrary/opposite
The more tons of goods, the more times they need to be transported.
therefore
Proportional
2
because
A pen and a 8 yuan.
The more you buy, the more money you have to pay.
contrary/opposite
The more money you pay, the more pens you can buy.
therefore
Proportional
What early knowledge. Don't know right