Show me the answer and show me a step by step.

If i have 20$ and i gave 5$ away how much i got

Tomas used 3 1/3 cups of flour and now has 1 2/3cups left. which equation can he use to find f, the number of cups of flour he had to begin with? f+3 1/3=1 2/3 f-3 1/3=1 2/3 3 1/3f=1 2/3 f/3 1/3=1 2/3

Acd that is originally priced at $15.85 red-tagged for the sale. what is the sale price of the cd