Hello, please help me answer these three problems in the same format I have set up, I will give a thumbs up for accuracy. Thank you!

1. ((((_JvK)vM)&N)41)&((_JVK)H) F-H&L-M&N 1 ((((_JvK)vM)&N) HL)&((~JVK) H)/ Assumption -H&L M&N 2 3 4 5 6 7 8 9 2. A->B, B-C, DEA&D->E&C 1 Assumption 2 Assumption 3 4 5 6 7 8 9 3. (A>B) =((B+C)&(DE), A---AVBH A&D->E&B