you randomly draw a marble out of a bag of 20 marbles. 3 marbles are green and 12 marbles are blue. what is the probability of selecting the green marble or a blue marble

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 ordered pair is a solution to the system of linear equations? 2x + 3y= 6 –3x + 5y = 10

Find the area of the region that is inside r=3cos(theta) and outside r=2-cos(theta). sketch the curves.