What is the average of 120, 130, 140, 510, 520, 530, 1115, 1120, and 1125?
Select.
A) 419  B) 551  C) 601  D) 590  E) 721
Add 120, 130, 140, 510, 520, 530, 1115, 1120, and 1125   Grouping numbers together may quicken the addition   sum =5310   5310/9= 
<gadget id="calculator">5310/9</gadget>
<output>590</output>
590   .590
<result>D</result>
What is the average of 120, 130, 140, 510, 520, 530, 1115, 1120, and 1125?