In the figure shown below, the radius of the smaller circle is 2 feet, and the radius of the larger circle is 5 feet. What is the area of the shaded region in square feet?

What is the value of m in the equation 1/2 m - 3/4n=16 when n=8

White shapes and black shapes are used in a game. some of the shapes are circles. while the rest are squares. the ratio of the number of white shapes to the number of black shapes is 5: 11. the ratio of the number of white cicrles to the number of white squares is 3: 7. the ratio of the number of black circles to the number of black squres is 3: 8. work out what fraction of all the shapes are circles.

The letters g e o r g i a are placed in a bag . if you picked a card and knew it was a vowel , what is the probability that it is an a ?