Some one help please

Of four points are collinear, they are also coplanar

Suppose you want just guess at the answers in a 5 question multiple-choice test. each question has 3 responses and only one is correct. what is the probability of getting two questions right just guessing? 20 points 0.3275 0.2753 0.7532 none of the above

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