Cho biểu thức: N=(x-a)(x-b)+(x-b)(x-c)+(x-c)(x-a)+ x^2. tính n theo a b c biết x=1/2a+1/2b+1/2c

The answer is c because you turn 17.5% into a decimal which gives you .175 then you times that by $361.35 which gives you 63.23625 but then you round that which gives you 63.24. then you at 63.24 pulse 361.35 and you round it which gives you $425