5. The Wildlife Rehabilitation Center received a $2,000 gift from a private donor to care for injured animals. Another donor pledged $5 for every animal that the center accepts and $8 for every animal that is released into the wild. It costs the center $650 for the government permit to care for wild animals, and $40 a day to care for all the animals. If workers take in and release 1 animal each day, how long will these monetary gifts support their work?