The amount that Sarah will have to pay as interest will be $180
Based on the information given, the following can be depicted:
Cost of dining room set = Principal = $1200
Interest rate = 15%
Time = 1 year
The simple interest will be calculated using the formula:
= PRT/100
= (1200 × 15 × 1) / 100
= 18000/100
= 180
Therefore, based on the calculations above, the interest that'll be paid by Sarah is $180.
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