Urgent help - finance question

Q1: We have a callable preferred stock after 5 years at $104 that pays $4 annual dividend. If the yields for this type of instruments  are 6%, What price do they fetch in the market?

Q2: We buy a 8% coupon bond now, when market rates are 10%, and intend to sell it in 3 years when market rates are 6%. What should we pay now?

Immediate help required !!!