Lena sells customprinted tshirts at her shop. She can sell 120 tshirts in a month if she charges $14 for each tshirt. She plans to change the price per tshirt by a fixed amount n times. The revenue, in dollars, after n changes in price can be modeled by the expression (120 + 5n)(14  3n).
Based on the information, complete the sentence about Lena’s tshirt sales. For each_______________ in the price per tshirt by $_____________, Lena will sell _____________tshirts in a month.
Answer: For each decrease in the price per tshirt by $3, Lena will sell 5 tshirts in a month.
The first factor (120 + 5n) represents the number of shirts sold. The second factor (14  3n) represents the price for the tshirt after the same n changes have been applied. Ask Algebra House
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