(2)300* 1=300 150*2=300 100*3=300

75*4=300 60*5=300 50*6=300

300* 1= 150*2= 100*3=75*4=60*5=50*6

(3) A: It means the total amount of goods.

(4) Answer: It is inversely proportional, because the tonnage transported every day * the number of days needed = the total tonnage (certain).

That's my answer. I hope I can help you. I will definitely adopt it! It seems to be this (made)