Hi there! The unit rate per carton is $4.
To find our answer we must divide the total cost by the total cartons bought.
$ 48 / 12 = $4
This sample size it too small. The larger the sample size, the more likely the data will be true to what the question is asking. A larger sample size brings more precision to the question that is being asked.
That means 8% of his trading cards are not in a binder. How we find this out is subtract 92% from 100%, and the remainder is how many he does not have in a binder, for whatever reason.
(2, 4) is the correct answer
