would like a step by step please

Which score indicates the highest relative position? Round your answer to two decimal places, if necessary. (a) A score of 3.4 on a test with X = 4.1 and s = 1.8. (b) A score of 630 on a test with X # 750 and s = 170. (c) A score of 41 on a test with X - 51 and s = 8. The score with the highest relative position is (Choose one) , since the (Choose one) hoose one is highest