What is 17% as a fraction in simplest form

Which of these equations, when solved, gives a different value of x than the other three? a9.1 = -0.2x + 10 b10 = 9.1 + 0.2x c10 – 0.2x = 9.1 d9.1 – 10 = 0.2x

2x minus y equals 6, x plus y equals negative 3

Identify the initial amount a and the growth factor b in the exponential function. a(x)=680*4.3^x