Final answer:
To find the savings on a pair of shoes with a 30% discount from the original price of $72.99, convert 30% to a decimal and multiply by the price, which results in $21.90 saved.
Step-by-step explanation:
The subject of the question is Mathematics, specifically percentage calculations related to discounts which are commonly covered in Middle School curriculum. To calculate the savings on a pair of shoes that normally costs $72.99 with a 30% discount, you would perform the following calculation:
- Convert the percentage to a decimal: 30% = 0.30
- Multiply the original price by the decimal: $72.99 × 0.30 = $21.897
- Round the savings to the nearest cent: $21.897 ≈ $21.90
Therefore, the amount you will save is $21.90, which corresponds to option b.