math problem help!!!

Question

The runway of an airport is 10,000 feet long. The landing signal lights are located every 500 feet after the 500-foot mark and before the 8,000-foot mark on each side of the runway. How many landing signal lights are there on each side of the runway?
Please show works!!! Thanks

Answer 1

1,000

1,500

2,000

2,500

3,000

3,500

4,000

4,500

5,000

5,500

6,000

6,500

7,000

7,500

 

How many is that?