Mary received a 20% raise each month for three consecutive months. What was her salary after the three raises if her starting salary was $1,000 per month?
Choose the correct answer
A) $1,348 B) $1,500 C) $1,631 D) $1,728 E) $1,863
1000 * 1.2 * 1.2 * 1.2 = 1000 * 1.728= 
<gadget id="calculator">1000 * 1.728</gadget>
<output>1_728</output>
1728   Answer: $1,728
<result>D</result>
Mary received a 20% raise each month for three consecutive months. What was her salary after the three raises if her starting salary was $1,000 per month?