A.428.57 B.328.57 C.300 D.200
A.9%B.13%C.11%D.10%
A.116600×(1+6%)×6%=7415.76(元) B.116600×6%=6996(元) C.(116600+21200)×6%=8268(元) D.(116600+21200)÷(1+6%)×6%=7800(元)
A.4604.27B.5469.65C.5478.06D.5914.95
A.0 B.1800 C.3600 D.10200