TAMPA – Lexy is a 10-year-old Redbone Coonhound. Princess Jazzy is a 3-year-old American Staffordshire Terrier. Mya is an AmStaff, too, but is just a year old. They are among the 300 abandoned, turned-in and stray dogs awaiting adoption at the Hillsborough County Pet Resource Center. But the county-run facility only has room for 200 dogs. For cats, it’s same: There are 150 at the center, and room for just 100.