What is the answer to algebra with pizzazz page 39?

Do sets always have an intersection that is not the empty set? Can someone factorize x2 plus 11x plus 60? In which direction does the x-axis run? What is 12.37 in expanded form? What are the factors and prime factors of 137? If two lines intersect do they lie in the same plane? What percent does one-third equal? Can natural numbers be negative? What is 6x squared minus x? What is the slope of 2x plus 3y equals 8? What numbers have an absolute value of 8? What are the advantages of using a number base 60 as opposed to a number base 10 or 100? How many square feet is a room 9 feet wide and 11 feet long? What is a sentence with larger in it? If A cyclist bikes x distance at ten miles per hour and returns over the same path at eight miles per hour What is the cyclists average rate for the round trip in miles per hour? Is have an adverb? Why is it important to have a method of denoting numbers that are very small or very large with a minimal amount of writing? What equation is (212) a solution too? What does 88 K ON A P K mean? What is the answer to 2 to the sixty fourth power?