The store offers a 20% discount, The t- shirt is $18 and the discounted price is $3.60 ? If the regular price for an item is x dollars, what is the discounted price? (Hint: write an expression)

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answer: the distance

step-by-step explanation:

to calculate the distance d of a line segment with endpoints (x1, y1) and (x2, y2) use the formula d (x2 x1)2 (y2 y1)2. to calculate the midpoint of a line segment with endpoints (x1, y1) and (x2, y2) use the formula