** please help me with this I am behind please please help I will be happy 17 points**

The inequality x>6 represents the number of blocks Sam walked to get to his friend's house.

Which sentence represents this inequality?

1. Sam walked more than 6 blocks to get to his friend's house.
2. Sam walked no more than 6 blocks to get to his friend's house.
3. Sam walked fewer than 6 blocks to get to his friend's house.
4. Sam walked at least 6 blocks to get to his friend's house.