Can someone give me the correct answer

X/y + 9 = n
x/y = n - 9
x = y(n -9)
y = x/(n - 9)

B is the correct answer

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