Lines parallel to each other have the same slope this means you can take out the third and fourth answers. With the given slope you can solve for the equation of the line that goes through (-6, -29). Do this by plugging in (-6, -29) as x and y values and plugging in 5/2 as the slope.
Remember, "parallel" in Geometry and Algebra means that they have SIMILAR <em>rate of changes </em>[<em>slopes</em>]. This is how your work should look:
Since students on opposite sides of the circle are 30 feet apart, the circumference of the circle is πd≈94.2. Since each student takes up 4 feet of space, 94.2/4=23.55 which we can round to 23 or 24 students.
