To determine which package minimizes the cost per one roll of toilet paper, we will analyze the given data on the price per unit (roll) for each package option. Here are the steps:
1. Review the provided price per unit for each package:
- For the 6-roll package: [tex]\( \$1.23 \)[/tex] per roll
- For the 9-roll package: [tex]\( \$1.17 \)[/tex] per roll
- For the 12-roll package: [tex]\( \$1.08 \)[/tex] per roll
- For the 20-roll package: [tex]\( \$1.00 \)[/tex] per roll
2. Compare the price per unit to find the lowest cost:
- 6-roll package: [tex]\( \$1.23 \)[/tex]
- 9-roll package: [tex]\( \$1.17 \)[/tex]
- 12-roll package: [tex]\( \$1.08 \)[/tex]
- 20-roll package: [tex]\( \$1.00 \)[/tex]
3. Identify the lowest price per unit:
- The lowest price per unit is [tex]\( \$1.00 \)[/tex] per roll, which corresponds to the 20-roll package.
Therefore, the package that minimizes the cost per one roll of toilet paper is the 20-roll package.
Answer: D. 20 roll package
