If the customer order came to $6.22 and he gave you $20.25 what is his change

You need to start an experiment and the instructions are to mix 2 g of sodium bicarbonate with 50 ml of distilled water and then mix the solution. describe what lab apparatus you would use and what safety precautions you must observe when completing this experiment.

What role must the audience play in the creation of an argument? how do bubbles(communities) complicate audience? should audiences be smarter? if yes, how do you make people smarter?

Have you ever felt like the person in this image during a speech or presentation? list four or five things this person can do to be a more effective listener.