Hi, I want to buy Adobe Connect for 25 and maybe more attendees by one host (teacher), but I cant find the price of this set up?

Hm, it seems the new website has obscured the option for purchasing the smaller monthly accounts. You can purchase it here. Adobe Connect | Meetings.

If you need more than the 25 per meeting limit, you can reach out to a reseller of your choice that covers your area, Adobe Connect | Strategic Partners.