I need some help with the maths questions they are very easy?

questions number 1? if 88% of milk is water, what percentage do the other components equal? question number 2? simplify 6 over 9? this question can be used in Decimals/ Fractions/Percentage. question number 3? Arrange in ascending order: 7,-3,0,-9,4? if you can answer all of these questions it will be very thankful for you i really need help with this.