The art teacher needed 100 sheets each of blue paper, red paper, and green paper. She found paper on sale in one-color packages of 50 sheets for $0.99 and multi-color packages of 225 for $2.99 in the following combinations:

Pgk. 1:red, blue, yellow

Pgk. 2:black, green, red

Pgk. 3:green, orange, white

what is the cheapest way to buy the right amount of paper?

buying 6 packages of the 50 papers for approx 6.00

Step-by-step explanation:

On the multicolor packages with 225, there would only be 75 pages per color, so she would have to buy 2 with the colors to get 100 sheets of a specific color, and would have to get 2 different packages to get all of the colors she needed, so that would be 4 packages at approx 3.00 each for 12.00