An item is regularly priced at $ 70. It is on sale for 40% off the regular price. How much in dollars) is discounted from the
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parallel lines have the same exact slope hmmm what's the slope of y = 2/3x-7 anyway? well, low and behold, is already in slope-intercept form, therefore
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so we're really looking for the equation of a line whose slope is 2/3, and runs through 3, -1.