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?

Match the scale and the actual area to the area of the corresponding scale drawing. scale: 1 inch to 4 feet actual area: 128 square feet scale: 1 inch to 7 feet actual area: 147 square feet scale: 1 inch to 8 feet actual area: 256 square feet scale: 1 inch to 5 feet actual area: 225 square feet area of scale drawing scale and actual area scale drawing area: 3 square inches arrowright scale drawing area: 8 square inches arrowright scale drawing area: 4 square inches arrowright scale drawing area: 9 square inches arrowright