Amultiple choice test consists of six questions, each of which has four choices. each question has exactly one correct answer.

william guesses randomly at each answer. what is the probability that he gets four or fewer questions correct?

Atriangle has sides with lengths of 10 yards, 13 yards, and 18 yards. is it a right triangle?

12. decide whether each statement is always true, sometimes true, or never true. a. when corresponding points of an original figure and its reflection are connected, the resulting segments are all perpendicular to the line of reflection. b. when a point is reflected over a horizontal line, the y-coordinate of the point stays the same. answer both questions and explain

Twenty-five percent of the customers entering a grocery store between 5 p. m. and 7 p. m. use an express checkout. consider five randomly selected customers, and let x denote the number among the five who use the express checkout.