Wine is 12 % (by volume) alcohol. How many milliliters of alcohol are in a 0.750 - L bottle of wine?

In this question, you are given the wine/alcohol concentration (12%) and the volume of the alcohol (0.75l). You are asked the alcohol content in milli liters, so don't forget to change the unit. Then the equation would be:

Alcohol content = alcohol concentration * bottle volume

Alcohol content = 12% * 0.75l * 1000ml/l = 90ml