Kim spends $25,000 to open a store.  She makes $4000 a month in revenue and her expenses are $1500 a month.  How long would it take to pay back the cost to open the store?
Her profit is 4000-1500=$<<4000-1500=2500>>2500
So it takes 25000/2500=<<25000/2500=10>>10 months to make back the money
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