Final answer:
The question asks about the amount of black cord, fabric in each color, and the least amount of each color needed for a design.
Step-by-step explanation:
The question is asking about the amount of black cord, the amount of fabric in each color, and the least amount of each color that needs to be bought for a design.
Answer to the first question: The amount of black cord used is 45 ft (option b).
Answer to the second question: The amount of fabric for each color is Green: 160 sq ft, Blue: 49 sq ft, Orange: 1.73 sq ft, Yellow: 3.14 sq ft (option b).
Answer to the third question: The least amount of each color that needs to be bought is Green: 2 bolts, Blue: 1 bolt, Orange: 1 bolt, Yellow: 2 bolts (option b).