Alex's school had 20 hours for 400 students. Abbey's school has 225 students riding 15 uses. Whose school has the greater ratio of students/buses?

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

Is the number 128.439 a rational number

Which equation is represented by the graph below?