To determine which option is less expensive per year, we need to compare the costs of purchasing 12 months at one time versus paying for 1 month at a time.
Option 1: Paying for 12 months at one time
If the contact lenses cost $300 for a year's supply, then paying for 12 months at one time would simply be $300.
Option 2: Paying for 1 month at a time
If the contact lenses cost $30 for a month's supply, then paying for 1 month at a time would be $30 multiplied by 12 months, which is $360.
Comparing the two options, paying for 12 months at one time costs $300, whereas paying for 1 month at a time costs $360. Therefore, paying for 12 months at one time is less expensive per year.
suppose contact lenses cost $300 for a years supply or $30 for a month's supply. which is less expensive to order per year, paying for 12 months at one time or paying for 1 month at a time
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