Answer:
For a the answer is 1/20 or 5%. For b the answer is 6/20 or 30%.
Explanation:
a) There are 20 spots the dart can land on. To land on one specific spot, it would be 1/20. 1 spot out of 20 spots.
b) There are 20 spots the dart can land on. To land on any of the 6 spots, it would be 6/20. 6 spots out of 20 spots.