Range= max number-min number so the highest number is 9 and the lowest number is 0. 9-0=9 so your range or spread of data would be 9
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We just add these numbers all together. The "losses" are negatives and the profits are positive.
-140,000 - 56,000 + 110,000 + 60,000 = -26000 or D
5.67 (performed on a calculator)