= A product manager is about to create some new products. He decide how much to invest in total and how many different products to create. In the past, when $100 was invested, creating 10 products resulted in revenue of $4700, 20 products resulted in revenue of $4800, 30 products resulted in revenue of $4900, and 40 products resulted in revenue of $5000. When $1000 was invested, creating 10 products resulted in revenue of $10000, 20 products resulted in revenue of $20000, 30 products resulted in revenue of $100000, and 40 products resulted in revenue of $180000. The product manager must estimate profit for different investment levels and different ranges of products