Imao y’all what do I do my ex is calling me and ok this ain’t the right place to ask these type of questions

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

Jordan got 27 out of 90 correct on his test . what fraction of the marks did her get correct

If value of cos330° is √3/2 then find tan165°.