Martina combined different amounts of water, vinegar, and rubbing alcohol to make 38 milliliters (ml) of a solution for a science experiment. the amount of water was x ml. the amount of vinegar was 8 ml less than that of water, and the amount of rubbing alcohol was half the amount of vinegar. this is represented in the equation below: x + (x − 8) + one half (x − 8) = 38 what was the difference in the amounts of water and rubbing alcohol martina combined? 8 ml 14 ml 18 ml 20 ml