Calvin paid 3.00 for 10 juice boxes. what is the unit rate in cost per box?

You basically have to divide 10/3 which will give you a decimal 3.3 so that would be your unit rate PER each box. Just multiply 3.3 by the number of boxes.

The rate would be that you have to divide 10/ 3 and that will get you your answer. which will give you a 3.3 repeated per unit box. then multiply the 3.3 by the whole thing