Alguien me puede explicar la pagina 152 del libro de matemáticas de 5° de primaria?,necesito una explicación de esa pagina, el titulo es ´´en que se parecen?´´

The manufacturer of a new product developed the following expression to predict the monthly profit, in thousands of dollars, from sales of the productwhen it is sold at a unit price of x dollars.-0.5x^2 + 22x - 224what is represented by the zero(s) of the expression? a.the profit when the unit price is equal to 0b.the unit price(s) when the profit is equal to 0c.the profit when the unit price is greatestd.the unit price(s) when profit is greatest

Which one ? is the answer and how to find this answer

Which of the following will form the composite function?