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hi please help me with my assignement.

this beam made of steel with moduus youg of 300 gpa, cross sectional area A1 =10.10^-6 m2

A2 = 20. 10^-6 m2.

length L1 = 2m

Length L2 =1,8 m.

at he level that is very rigid ring mounted to apply the load F=8 KN.

questions :

1.calculate reaction pedestal points A and B

2. stresses that ocur in cross section A1 and A2

3. the displacement Point C.

please help me, I've spent two weeks to do .. I say many thanks to friends in this forum