How do i find a mixed number in the simplest form of 3.6?

For which pair of functions is (gof)(a)=|a|-2?

You have 12 balloons to blow up for your birthday party. you blow up 1/3, and your friend blows up 5 of them. what fraction of the baloons still need blowing up

George writes the mixed number as sum and uses the distributive property 1/2.-2/5=1/2-2+2/5=1/2