Assume 5.0kg of apples in 1 dozen and that each apple has 20 seeds. How many apple seeds are in 20 kg of apples?

What percent of the circle below is shaded?

Is the product of two rational numbers irrational or rational? first, make a hypothesis by multiplying two rational numbers. then, use variables such as x=a/b and y=c/d and the closure property of integers to prove your hypothesis.

The radius of the earth is two times the radius of the moon. what fraction of the volume of the earth is the volume of the moon?