Final answer:
We cannot solve how many packages of copier paper Ricardo can buy for $40, as the cost per package is not provided.
Step-by-step explanation:
The question asks us to calculate how many packages of copier paper Ricardo can purchase with $40. However, there is no information provided on the cost of each package of paper. To answer such a question, we must know the price per package. Without this crucial piece of information, we cannot determine whether Ricardo could buy 20, 50, 80, or 32 packages with his $40.
It is important in mathematics to have all the necessary variables to solve a problem. If a piece of information is missing, as in this case, we are unable to arrive at a solution.