At Middle school ,60% of the 800 students participate in music. How many students participate in music.???

Which is a true statement comparing the graphs of x^2/6^2-y^2/8^2 = 1 and x^2/8^2-y^2/6^2 the foci of both graphs are the same points. the lengths of both transverse axes are the same. the directrices of = 1 are horizontal while the directrices of = 1 are vertical. the vertices of = 1 are on the y-axis while the vertices of = 1 are on the x-axis.

What can you determine about the solutions of this system

An arc subtends a central angle measuring 7pi/4 radians what fraction of the circumference is this arc?