You are buying a pair of shoes that normally cost $72.99. They are on sale for 30% off. How much will you save?

If the item is 30% off, the new price is 0.7p because we want to know how much 70% of the original price was.

Step-by-step explanation:

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46

step-by-step explanation:

given

height = 168 cm

formula

height =2.47*f+54.13

solution

168 = 2.47f + 54.13             subtract 54.13 from both sides

168 - 54.13   = 2.47f             combine

113.87 = 2.47f                     divide by 2.47

113.87 / 2.47 = f                   combine

46.1 = f  

answer: 46 cm