Clifford had 46 donuts and I had 26 how much are there in all

:24% of students in a class are girls. if there are less than 30 students in this class, how many students are there? how many girls are there?

Which of these tools or constructions is used to inscribe a hexagon inside a circle?

What is the value of the discriminant, b2 ? 4ac, for the quadratic equation 0 = x2 ? 4x + 5, and what does it mean about the number of real solutions the equation has?