According to the general equation for conditional probability of p(an b) = 3/10 and p(b)= 3/5, what is p(a|b)

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

Apark is in the shape of a rectangle. the park authorities are planning to build a 2-meter-wide jogging path in the park (shown as the shaded region in the image). what is the area of the jogging path? plz

Which expression is equivalent to sq-80