Which of the following shows that 5/8 = 15/18 is a proportion?

: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?

What is the factor form of x^2-9x+14

Agrid shows the positions of a subway stop and your house. the subway stop is located at (-5,2) and your house is located at (-9,9). what is the distance, to the nearest unit, between your house and the subway stop?