Final answer:
The mark-up on a computer that a store buys for $837 with a 38 percent mark-up is $318.06.
Step-by-step explanation:
The question is asking for the amount of the mark-up on a computer that a store buys for $837 and then marks up by 38 percent. To calculate the mark-up, we first convert the percent to a decimal by dividing by 100. This gives us 0.38. We then multiply the store's cost for the computer by this decimal:
- Mark-up = Store's cost × Percentage mark-up
- Mark-up = $837 × 0.38
- Mark-up = $318.06
Therefore, the amount of the mark-up is $318.06.