Answer:
Option D: a + b ≥ 30
b ≥ a + 10
Explanation:
As 1st given condition is:
- two integers a and b add up to give an integer that is at-least 30, this means that the integer can be equal to 30 or greater than 30. So the equation will become:
a + b ≥ 30
2nd condition says:
- difference between two integers must at least be 10 so
b - a ≥ 10
OR
b ≥ a + 10
i hope it will help you!