How many monasteries were affected by the dissolution of the monasteries?

the many monstaries were around 40

The monks who lived there and the Catholic Church which received some of the revenues from the monasteries and churches.

8000 were closed men

For a list (probably incomplete) see the links below. Also, a recent book: Ghidul mănăstirilor din România Editura Sophia, Bucureşti, 2011; 360 pages.