How can this be the "review" if none of this has been covered? And how is it that you can't even do the elementary-school arithmetic, such as "simplify 8 + 28" or "simplify 3 × 5", or did you not bother to format the questions correctly? And why do the instructions refer to radicals and the need to rationalize denominators, when no radical signs are included? Are we supposed to be reading your mind or channelling your book through our crystal balls, to figure out where the heck the square-root signs are supposed to be?
Meanwhile, since, according to you, none of this has been mentioned at all in class, doing one example of each would likely be quite insufficient to teach you all the material. I'm afraid we can't teach lessons here, so you'll need to go elsewhere to learn the material first. Try search engines. (Since we can't even tell for sure what you've posted, it will be difficult for us to try to recommend anything in particular. Sorry.)
Eliz.