I'm only good at answering not solving:,)

A. 1/2 (simplified probability)B. 2/3 (simplified probability)

Step-by-step explanation:

A. There are 3 even numbers in a cube which means that there are 3/6 or 1/2 probability of rolling an even number.B. The factors of 6 are: 1, 2, 3, and 6. Whick means that there is 4/6 or 2/3 probability of rolling a factor of 6.

In order to do this, isolate h. so subtract pi r^2 and then divide both sides by 2 pi r.