Lena sells custom-printed T-Shirts at her shop. She can sell 120 T-Shirts in a month if she charges $14 for each T-shirt. She plans to change the price per T-shirt by a fixed amount ñ times. The revenue, in dollars, after ñ changes in price can be modeled by the expression (120+5ñ) (14-3ñ)

For each (Increase or decrease) in the price per T-shirt by $ (3,5,9,14,17), Lena will sell (3 more, 5 more, 14 more, 3 fewer, 5 fewer)