Help withhh al due at 9:45am

To determine the number of deer in a forest a forest ranger tags 280 and releases them back

Sasha delivers newspapers to subscribers that live within a 4 block radius of her house. sasha's house is located at point (0, -1). points a, b, c, d, and e represent the houses of some of the subscribers to the newspaper. to which houses does sasha deliver newspapers?

What is 6/10 rounded to the nearest half