Suppose contact lenses cost $300 for a year supply for $30 for a monthly supply which is less expensive to order per year paying for 12 months at one time for buying for one month at a time

Answer 1

To determine which option is less expensive for ordering contact lenses, let's break down the costs for both scenarios.

1. Annual supply:

   • The cost is $300 for a year's supply.

2. Monthly supply:

   • The cost is $30 for one month's supply.
   • For 12 months, the total cost would be $30,\text{dollars/month}\times 12,\text{months}=360,\text{dollars}$.

Now, compare the two costs:

• Annual supply: $300
• Monthly supply: $360

Conclusion: Ordering the annual supply for $300 is less expensive than buying the monthly supply for $360.