Use the roster method to represent the given set.

1. The set of counting numbers greater than -1 and less than 9

2. The set of months of a year ending with the letters"ber".

B. Use the set-builder notation to represent the given set.

1. The set of natural numbers that are less than 7.

2.{1, 4, 9, 16, 25, 36, 49}