Here are the steps to solve this word problem:
* Sandy had $200
* She went to a grand sale where items were 30% off
* An item originally priced at $70 was on sale for 30% off
* To calculate 30% of $70: 30% = 0.3, 0.3 * $70 = $21
* So the sale price of the item was $70 - $21 = $49
* Sandy bought this item for $49
* She also bought another item originally priced at $40 for 30% off
* 30% of $40 is 0.3 * $40 = $12
* So the sale price of this item was $40 - $12