I assume you are talking about sets. If I am asked about a set that consists of even numbers between 30 and 49, I would not include 30 and 49 because it says "between." But, you can ask you're teacher about that. So, for me, I would think it is: 30 < x < 49 where x is an even number.
1.) Determine the even numbers greater than 30 and lesser than 49, start by the nearest even number closest to 30 which is 32, (then + 2), 34, 36 ,38, 40, 42, 44, 46, 48.
2.) Pick a name for the set. Add an "=" sign. Add the opening brace. Put the elements with their commas. Finally, add the closing brace.
A
A =
A = {
A = {32, 34, 36. 38, 40, 42, 44, 46 ,48
A = {32, 34, 36. 38, 40, 42, 44, 46 ,48}
Final Answer:
A = {32, 34, 36. 38, 40, 42, 44, 46 ,48}