Help me yall And i will help you guys

What numbers are included in the set of integers? what numbers are not included?

What percent of 18 is 24? and plz explain thx.

Reading tests are compared for two students. sara got 98, 100, 65, 78, 98, 46, 100, 100, 45, and 50 on her reading test. lee got 97, 67, 89, 99, 100, 45, 79, 89, 58, and 67 on his reading test.