Of the 45 students in mrs. ramsey's art class, six-ninths are in sixth grade. how many sixth graders are in mrs. ramsey's art class?

Which is the equation of an ellipse with directrices at x = ±4 and foci at (2, 0) and (−2, 0)?

1. find the area of the unshaded square 2. find the area of the large square 3. what is the area of the frame represented by the shaded region show

What is the value of f(x) = 2.2 for f(-2)?