To find out which package is a better buy, we need to calculate the cost per lesson for both Package A and Package B.
For Package A:
- Cost: $230 for 20 lessons
- Cost per lesson: \( \frac{230}{20} = 11.50 \) dollars per lesson
For Package B:
- Cost: $180 for 15 lessons
- Cost per lesson: \( \frac{180}{15} = 12 \) dollars per lesson
Now we compare the cost per lesson: Package A costs $11.50 per lesson, while Package B costs $12.00 per lesson. Since $11.50 is less than $12.00, Package A is the better buy because it gives Millie more lessons for less money.